1990 Dodge Grand Caravan 3.3l V6 Stalling/rough idle

How to change personal info?

Hello Guest

• Login
• Register…
• Start blog

• Who, Where, When
• What is interesting here?
• Duels

• Polls
• Avatars
• Interests

• Cities and Countries
• Random blog
• Users search

• Search
• Games
• Tests
• CarGuru

• Сообщества
• Talxy Chat
• Horoscope
• Online

CarGuru > Chrysler > 1990 Dodge Grand Caravan 3.3l V6 Stalling/rough idle 7 March 2005 21:40:44

Recent blog posts:

95 mirage
I have a 95 mirage and this is the second time the injector in number 3 cylinder has gone bad. Anything…

1988 Ford F-150 Truck
I would like to remove the pollution control system from my 1988 F-150, 4.9L I6 300 4x4. Can anyone…

my 99 M chrysler has started to…
my 99 M chrysler has started to cool and then starts to give off heat in the ac vents and then cool…

dodge 2000 intrepid
bought this car right off the show room floor in Bartow fl to this date I have not had any work done on…

starting issue, 2002 dodge…
My 2002 Dodge Caravan wouldn't crank. I tested some things, replaced the battery. After installing the…

stereo pin
I put a new battery in my girl friends 94 900 and it wants a code for the radio. There is nothing in the…

Coolant temp on Saturn Sky
I just purchased a 2007 Saturn Sky Redline. As I was driving yesterday I happen to have the info set on…

Que pour la place trange
Que pour la place trange

ha ha ha... loh mlya....da…
ha ha ha... loh mlya.... da, da... imenno you!!!!

da da da.....
da da da.....

They have birthday today:

YJlady

all >>

Forums:

topic feeds

• CarGuru all topics, blogs and comments

• Driving

• Formula-1

• Indycar

• Nascar

• Other sport

• Technology

• 4 x 4

• Volkswagen

• Mercedes

• Acura

• Alfa-romeo

• Audi

• BMW

• Chrysler

• Dodge

• Ford

• General Motors

• Jeep Willys

• Honda

• Hyundai

• Mazda

• Nissan

• Peugeot

• Pontiac

• Porsche

• Saab

• Saturn

• Toyota

• Volvo

• Buy / Sell

• Open discussion

• Anonymous

Discuss:

How to clean cloth upholstery
I have a '95 LeBaron with cloth upholstery, mostly tan with some black woven in and maybe another color…

2002 Voyager Drain Plug…
Need help locating radiator drain plug for 2002 Voyager. Would appreciate someone sending back location…

2001 PT Cruiser Problems??????
Recently bought one. Love it! Anything in particular I should watch for? Anybody have anything…

Chrysler-Dodge 2005 manuals…
=ybegin part=470 line=128 size=168867988 name=2005-LX-SM.pdf =ypart begin=117062401…

concorde heater system
I have the usual problems with the heater controls on my 95 Concorde. I took out the circuit board and…

Recent forum topics:

...96 Accord tranny issue
I have a 1996 honda accord ex automatic. on a cold start the car shits gears realitively fine. however…

i just want to find out how…
i just want to find out how much it will cost to change an ignition to a 2001 pontiac grand am and can i…

What is causing my 97 Toyota…
What is causing my 97 Toyota Camry to hesitate like it is about to stall?

94 Dodge Intrepid
How do I go about finding and unsticking or replacing the gas float on a 94 Dodge Intrepid. I ran out of…

Recent forum comments:

RE: 1999 Chrysler T&C - Speed…
I am reading all of this and am amazed at how bad I am getting ripped off by my Chrysler dealership....4…

RE: Heating problem in 1988 Honda…
well thats no always true!!! my husband replaced the thermostat/thermometer..... and the water…

RE: 98 Dodge Grand Caravan Problems
I had the same problem with the instrument panel, after about a months worth of greif, and dollars…

RE: Re: Road test - DMV is cracked
Well, I passed on the 4th roadtest. The examiner said I should have passed it the first time. I have…

RE: Chevy 305 Timing Chain…
Sprucing up a low mileage 305 chev. Crank sprocket has one keyway. Looking at the front end how many…

RE: 95 maxmia
my 95 Nissian Quest jerks A Lot:-? when it warms up and I push on the accelerator, I was told…

RE: shaking little 90
Turn the idle up about 50 rpm and/or clean the thottle body with a spray-type throttle body cleaner…

RE: shaking little 90
cashbury@sympatico.ca wrote: Not knowing precisely what you mean by "shake", I'll…

RE: shaking little 90
On Thu, 19 Mar 2009 18:07:37 -0700 (PDT), cashbury@sympatico.ca wrote: You probably have a…

RE: shaking little 90
In article…

Модератор:

Administrator


1990 Dodge Grand Caravan 3.3l V6 Stalling/rough idle
Guest 3 March 2005 03:12:18
	I have a 1990 Dodge Grand Caravan with about 130,000 Miles on it. It has Chrysler's 3.3L V6 engine. Recently, I've had an issue with it idling. What happens is that the idle will drop to about 300 RPM for a second, then it will shoot up to about 1000 RPM, then it will fall to the normal 600 RPM for about a second, and repeat. A few times it has outright stalled. Unfortunately, this is intermittant. It has only happened after the engine has sat a few hours (though it's only happened 4 times or so, so it may be concidence) or it may be related to a cooler engine temp. When it's happened, hitting the gas to bring it up to about 3000 RPM, then letting it fall back to idle seems to fix it - the car will happily idle then. Anything above idle and the car runs fine. The idle is a BIT rough, but keep in mind it is 15 years old. No violent shaking or anything, but not perfectly smooth like a new car would be. I've used my scan tool (Actron CP9150) and no faults are being logged. The voltage on the TPS does change, but I haven't had the tool on it while the fault is actually occuring (what idiot put the connector under the hood! ) This happened once about 2 months ago, and I asked around and was told to clean the throttle body. So we took off the throttle body, cleaned all the gunk out, put it back together and it didn't happen after that, so I assumed it was fixed. Then this started happening this afternoon. I also should note that we did change the timing chain a few days ago. I doubt it is related, as this did occur once before back in december (though the car wouldn't idle at all then, just started and died) but figure I should mention that. Any thoughts/suggestions/tests would be appreciated. Thanks, Eric Kotz newsgroups@erickotz.com
		Add comment


Maxpower 3 March 2005 03:57:50 [ permanent link ]
	<newsgroups@erickotz.com> wrote in message news:1109805137.988815.116400@o13g2000cwo.googlegroups.com...> I have a 1990 Dodge Grand Caravan with about 130,000 Miles on it. It> has Chrysler's 3.3L V6 engine. Recently, I've had an issue with it> idling. What happens is that the idle will drop to about 300 RPM for a> second, then it will shoot up to about 1000 RPM, then it will fall to> the normal 600 RPM for about a second, and repeat. A few times it has> outright stalled.> Unfortunately, this is intermittant. It has only happened after the> engine has sat a few hours (though it's only happened 4 times or so, so> it may be concidence) or it may be related to a cooler engine temp.> When it's happened, hitting the gas to bring it up to about 3000 RPM,> then letting it fall back to idle seems to fix it - the car will> happily idle then. Anything above idle and the car runs fine. The> idle is a BIT rough, but keep in mind it is 15 years old. No violent> shaking or anything, but not perfectly smooth like a new car would be.> I've used my scan tool (Actron CP9150) and no faults are being logged.> The voltage on the TPS does change, but I haven't had the tool on it> while the fault is actually occuring (what idiot put the connector> under the hood! )> This happened once about 2 months ago, and I asked around and was told> to clean the throttle body. So we took off the throttle body, cleaned> all the gunk out, put it back together and it didn't happen after that,> so I assumed it was fixed. Then this started happening this afternoon.> I also should note that we did change the timing chain a few days ago.> I doubt it is related, as this did occur once before back in december> (though the car wouldn't idle at all then, just started and died) but> figure I should mention that.> Any thoughts/suggestions/tests would be appreciated.> Thanks,> Eric Kotz> newsgroups@erickotz.com What step is the AIS motor on, 16 is a good number with the a/c off and a clean throttle body. while the fault is actually occuring (what idiot put the connector> under the hood! ) What idiot made an after market scan tool with such a short wire after it was designed for the DRB? Was the Tamper proof plug removed on the Screw that adjusts the throttle blade angle?? Glenn Beasley Chrysler Tech
		Add comment


Guest 3 March 2005 06:33:29 [ permanent link ]
	How do I read what step the AIS motor is on? I have a TPS voltage reading (which is at .57v at idle) but I didn't see anything about the AIS motor? The scan tool has a 6 foot cable - hardly long enough to reach out the front of the hood and back into the passenger compartment. Unfortunately, yes, the tamper proof plug has been removed that protects the throttle blade angle. How can I properly reset it?
		Add comment


Maxpower 3 March 2005 13:30:06 [ permanent link ]
	<newsgroups@erickotz.com> wrote in message news:1109817209.288858.248400@o13g2000cwo.googlegroups.com...> How do I read what step the AIS motor is on? I have a TPS voltage> reading (which is at .57v at idle) but I didn't see anything about the> AIS motor?> The scan tool has a 6 foot cable - hardly long enough to reach out the> front of the hood and back into the passenger compartment.> Unfortunately, yes, the tamper proof plug has been removed that> protects the throttle blade angle. How can I properly reset it?> I have never used that generic scan tool and don't know what it is capable of doing, But I would assume if you can read voltages on it you should be able to read sensor values. And It should show what step it is on. If the throttle body was dirty and someone adjusted the Throttle blade angle/TPS sensor..... That may be your problem.. I normally put the system into a minimum air flow test and adjust the idle/sensor that way. Once again, not sure if your scanner is capable of doing that....Turn the screw out about a half turn to see if that stops it
		Add comment


Guest 4 March 2005 00:28:07 [ permanent link ]
	OK, I looked through the scan tool again and found that the AIS position is generally about 65-70 A couple new developments today. The engine seems to do it more when it is cold/not do it when it is warm. While it was doing it today, I had the oppertunity to hook my scan tool up and nothing looked terribly out of the ordinary, but it's hard to tell. While it was happening, the O2 sensor was reading rich. It also no longer seems to be an idle problem, as when I held my foot on the gas it was still having the issue, up to about 1500RPM. Past that it seemed fine. Also, one time I hit the gas and it seemed like the engine speed did not increase. Additionally, I heard 2 clunk noises coming from the engine at one point. Perhaps it was just backfiring, but it did sound like it came from the engine, not the exhaust. I plan on disconnecting the EGR valve today and seeing what happens, but any more insight is appreciated.
		Add comment


Maxpower 4 March 2005 00:58:15 [ permanent link ]
	<newsgroups@erickotz.com> wrote in message news:1109881687.761617.154670@o13g2000cwo.googlegroups.com...> OK, I looked through the scan tool again and found that the AIS> position is generally about 65-70> A couple new developments today. The engine seems to do it more when> it is cold/not do it when it is warm. While it was doing it today, I> had the oppertunity to hook my scan tool up and nothing looked terribly> out of the ordinary, but it's hard to tell. While it was happening,> the O2 sensor was reading rich.> It also no longer seems to be an idle problem, as when I held my foot> on the gas it was still having the issue, up to about 1500RPM. Past> that it seemed fine. Also, one time I hit the gas and it seemed like> the engine speed did not increase. Additionally, I heard 2 clunk> noises coming from the engine at one point. Perhaps it was just> backfiring, but it did sound like it came from the engine, not the> exhaust.> I plan on disconnecting the EGR valve today and seeing what happens,> but any more insight is appreciated.> 65 to 70 steps? thats too high, you need to get the the throttle blade set back and make sure the blade and bore is clean.Typically the out of adjusted TPS will cause problems when cold and could also cause a hestitation and other problems
		Add comment


Guest 4 March 2005 01:09:14 [ permanent link ]
	Can you give me any advice on re-setting it properly? My scan tool doesn't seem to have a minimum airflow test - are there any other things that test can be called? Failing that, is there another way I could set this screw properly? The blade and bore should be clean - about 2 months ago I took them off and used a toothbrush and about 1/2 a can of carb/choke cleaner to clean them and they were virtualy spotless. The van has only been driven about 1000 miles since then, so they should be clean.
		Add comment


Maxpower 4 March 2005 03:41:44 [ permanent link ]
	<newsgroups@erickotz.com> wrote in message news:1109890449.772466.206300@o13g2000cwo.googlegroups.com...> Well, what should I expect to see? I backed it out 1/2 a turn and when> starting the engine the AIS was about 35. After running for a couple> minutes, it worked its way down to about 30.> Also, does this engine have an EGR valve? The service manual is> unclear - it seems to imply that all US versions have it, but then has> a California-specific section. I can't find the EGR valve - is it just> not there, or am I just missing it.> My scan tool can cause the AIS motor to move, but unfortunately it> doesn't give me control over it (just cycles open-closed-open...)> Thanks! the emission sticker under the hood will tell you if the vehicle is equiped with an egr valve or not, if it has one it would be just behind the throttle body on the bottom
		Add comment


Maxpower 4 March 2005 05:20:42 [ permanent link ]
	If it doesnt say it on the sticker, it has no EGR valve, unless the engine was swapped out with a used one,, leave the setting at that position and see if it makes a difference. 16 steps was a good setting for that yr <newsgroups@erickotz.com> wrote in message news:1109898804.055613.49590@f14g2000cwb.googlegroups.com...> I assume you mean the sticker in the middle of the hood that says "This> vehicle conforms to the US EPA regulations applicable to 1990 model> year new light-duty trucks at all altitudes" and has a diagram of some> of the emission stuff. There's no mention of an EGR valve - I would> take it that means there is not one?> Also what should I target for the AIS position - ie should I turn that> screw further? It started at about 34 or so when I started the cold> engine. After running for about 8 minutes it was down to 27 or so.> Thanks!>
		Add comment


Guest 4 March 2005 07:19:40 [ permanent link ]
	OK, so no EGR valve then. Earlier today I took a bunch of connectors, unplugged them, shot some cleaner in them, plugged them back in. No difference Also, when the engine is at full temperature, the AIS motor went down to about 18. The problem seems to manifest itself when the engine is warming up. Something like 110В° through 135В° coolant temperature. Engine seems to be fine when dead cold or hot, but unhappy while warming up. Problem no longer seems to be an idle problem - rather, a generic running problem. Also, I hear a whistling noise from the engine that seems loudest at about 1200RPM. Sounds like it could possibly be a vaccuum leak, but we can't find a source. It SOUNDS like it is coming from the bracket directly above the alternator - but obviously metal brackets don't have vaccuum leaks I'd also like to point out the cam sensor was severely disturbed when we changed the timing chain. Chrystler's directions, for some reason, said to remove it, which we attempted to do. The stupid thing refused to come out. Ultimately we gave up on removing it and discovered there was no need to remove it anyway. Also, what is a normal value for the MAP sensor? My scan tool is showing about 275 Torr. Any more help would be much appreciated. Thanks, Eric Kotz newsgroups@erickotz.com
		Add comment


Maxpower 4 March 2005 13:19:47 [ permanent link ]
	<newsgroups@erickotz.com> wrote in message news:1109906380.423909.30310@l41g2000cwc.googlegroups.com... OK, so no EGR valve then. Earlier today I took a bunch of connectors, unplugged them, shot some cleaner in them, plugged them back in. No difference Also, when the engine is at full temperature, the AIS motor went down to about 18. The problem seems to manifest itself when the engine is warming up. Something like 110° through 135° coolant temperature. Engine seems to be fine when dead cold or hot, but unhappy while warming up. Problem no longer seems to be an idle problem - rather, a generic running problem. Also, I hear a whistling noise from the engine that seems loudest at about 1200RPM. Sounds like it could possibly be a vaccuum leak, but we can't find a source. It SOUNDS like it is coming from the bracket directly above the alternator - but obviously metal brackets don't have vaccuum leaks I'd also like to point out the cam sensor was severely disturbed when we changed the timing chain. Chrystler's directions, for some reason, said to remove it, which we attempted to do. The stupid thing refused to come out. Ultimately we gave up on removing it and discovered there was no need to remove it anyway. Also, what is a normal value for the MAP sensor? My scan tool is showing about 275 Torr. Any more help would be much appreciated. Thanks, Eric Kotz newsgroups@erickotz.com Aww info coming......If you disturbed the sensor in any way trying to loosen it, you may have changed the air gap in it and this could cause problems....Did you say this problem was an after fact of the timing chain?.....And if its a vacuum leak, that could pose problems as well.. They say to remove the sensor so you don't break it and then install it back with the proper setting using a paper shim that sticks to the sensor as you install it. Do you have at least 18 inches of vacuum at idle?
		Add comment


Aarcuda69062 4 March 2005 19:25:25 [ permanent link ]
	In article <1109906380.423909.30310@l41g2000cwc.googlegroups.com>, newsgroups@erickotz.com wrote: Also, what is a normal value for the MAP sensor? My scan tool is> showing about 275 Torr.> Any more help would be much appreciated. 275 Torr equals (appx) 10.8 inches of mercury Assuming a baro reading of 29.X inches of mercury, that puts your manifold vacuum around 18 inches of mercury. If your scan tool gives a voltage reading for the MAP sensor, I'd expect to see it around 1.5 volts or slightly less...
		Add comment


Maxpower 5 March 2005 04:30:48 [ permanent link ]
	"Barry Schnoor" <BGS6G@virginia.edu> wrote in message news:d0akuj$8ao$1@murdoch.acc.Virginia.EDU...> My question was somewhat different. Original Post mentioned changing the> timing chain.> Why was this done? My only experience with a chain was on my Saturn, and had 170,000 miles with no suggestion from anyone that the chain should be> changed...as long as we kept oil in the engine.> Should I anticipate changing the chain on my Dodge 3.3 V6? At which point?> And how much can I expect to pay to have a mechanic do that?> Thanks.> Barry in C'ville> Driving my first Dodge.> "aarcuda69062" <nonelson@sbcglobal.net> wrote in message> news:nonelson-F9B820.09252504032005@newsclstr01.news.prodigy.com...> > In article> > <1109906380.423909.30310@l41g2000cwc.googlegroups.com>,> > newsgroups@erickotz.com wrote:> > Also, what is a normal value for the MAP sensor? My scan tool is> >> showing about 275 Torr.> >> Any more help would be much appreciated.> > 275 Torr equals (appx) 10.8 inches of mercury> > Assuming a baro reading of 29.X inches of mercury, that puts your> > manifold vacuum around 18 inches of mercury.> > If your scan tool gives a voltage reading for the MAP sensor, I'd> > expect to see it around 1.5 volts or slightly less...> There is no normal maintenance schedule for chain replacement, normally an 1/8 inch of stretch or when it rattles, I would say about 4 hrs labor, maybe 150.00 parts, don't quote me on that
		Add comment


Aarcuda69062 5 March 2005 05:28:15 [ permanent link ]
	In article <d0akuj$8ao$1@murdoch.acc.Virginia.EDU>, "Barry Schnoor" <BGS6G@virginia.edu> wrote: <snip>> Should I anticipate changing the chain on my Dodge 3.3 V6? At which point? > And how much can I expect to pay to have a mechanic do that? I've changed timing chains on 3.3s at 110K miles, I've seen vans with 200K that didn't need one. Maintenance goes a long way here. The chain stretch can be determined by labscoping the camshaft sensor and crankshaft sensor signals and comparing the two for offset. Labor charges to replace the chain depends on which generation mini-van you have, third generation being the hardest to do because of underhood access. I don't have my labor books handy, but I believe it's going to be higher than the 4 hours Glenn mentioned. Front motor mount has to come off as does the oil pan... If you want specific labor times, post the model year and I'll look it up tomorrow at work.
		Add comment


Barry Schnoor 7 March 2005 21:40:44 [ permanent link ]
	I drive an '03 3.3 grand caravan...and I don't anticipate any problems... But I always want to know more about the machine I'm driving. Thanks. Barry "aarcuda69062" <nonelson@sbcglobal.net> wrote in message news:nonelson-BBEDCC.19281404032005@newsclstr01.news.prodigy.com...> In article <d0akuj$8ao$1@murdoch.acc.Virginia.EDU>,> "Barry Schnoor" <BGS6G@virginia.edu> wrote:> <snip>>> Should I anticipate changing the chain on my Dodge 3.3 V6? At which >> point?>> And how much can I expect to pay to have a mechanic do that?> I've changed timing chains on 3.3s at 110K miles, I've seen vans> with 200K that didn't need one. Maintenance goes a long way here.> The chain stretch can be determined by labscoping the camshaft> sensor and crankshaft sensor signals and comparing the two for> offset.> Labor charges to replace the chain depends on which generation> mini-van you have, third generation being the hardest to do> because of underhood access.> I don't have my labor books handy, but I believe it's going to be> higher than the 4 hours Glenn mentioned. Front motor mount has> to come off as does the oil pan...> If you want specific labor times, post the model year and I'll> look it up tomorrow at work.
		Add comment

CarGuru > Chrysler > 1990 Dodge Grand Caravan 3.3l V6 Stalling/rough idle 7 March 2005 21:40:44

	see also: camry or subaru? Camry. Rear turn signals work, front… Re: Prius Mileage		pass tests:		see also: 1985 JEEP CJ& 99 ford explorer fuel pump location or is it a fuel pump…

Copyright © 2001—2009 Car-Guru
Idea: Miсhael Monashev
See Help and FAQ in the community support.car-guru.com.
Write in the community about the bugs you have noticedbugs.car-guru.com.
Write your offers and comments in the communities suggest.car-guru.com.
Information for parents.
Write us at:

If you would like to report an abuse of our service, such as a spam message, please .




Get comments by e-mail Add to favourites

respect your talk pals, avoid using obscene language, typing entire messages in CAPS, posting buy/sell ads or violating netiquette or the RF Criminal Code..

1990 Dodge Grand Caravan 3.3l V6 Stalling/rough idle

Add new comment