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1990 Civic Power Loss and Shudders
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CarGuru > Honda > 1990 Civic Power Loss and Shudders 21 April 2005 20:54:50

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1990 Civic Power Loss and Shudders

Zakatak 13 April 2005 02:12:17
 I have a 1990 Honda Civic 4 door with 196k. The car has been running great.
The car now seems to have a power loss at low rpm and jerks and shudders
untill about 3000 rpm when it will kick back in and perform. I have
changed the fuel filter, have new plugs, wires, dist/cap/rotor and all my
vac lines appear in good shape. Anybody delt with this please drop a line.

Add comment
TeGGer® 13 April 2005 05:08:05 permanent link ]
 "Zakatak" <zakatak23831@yahoo­.com> wrote in
news:10248e9ad987f3­9bacfdefdc0600231c@l­ocalhost.talkaboutau­tos.com:
I have a 1990 Honda Civic 4 door with 196k. The car has been running> great. The car now seems to have a power loss at low rpm and jerks and> shudders untill about 3000 rpm when it will kick back in and perform.> I have changed the fuel filter, have new plugs, wires, dist/cap/rotor> and all my vac lines appear in good shape. Anybody delt with this> please drop a line. >


EGR valve sticking open?

Oh, Terry, where are you?!

--
TeGGeR®

The Unofficial Honda/Acura FAQ
www.tegger.com/hond­afaq/
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Jim Beam 13 April 2005 06:59:08 permanent link ]
 Zakatak wrote:> I have a 1990 Honda Civic 4 door with 196k. The car has been running great.> The car now seems to have a power loss at low rpm and jerks and shudders> untill about 3000 rpm when it will kick back in and perform. I have> changed the fuel filter, have new plugs, wires, dist/cap/rotor and all my> vac lines appear in good shape. Anybody delt with this please drop a line.>
try the thermostat. it you're still on the original, it'll almost
certainly be out of spec. by now. mine was & changing it removed
symptoms like you describe. also check the operation of the throttle
body's tandem valve.

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Motsco_ _ 13 April 2005 19:41:49 permanent link ]
 Zakatak wrote:> I have a 1990 Honda Civic 4 door with 196k. The car has been running great.> The car now seems to have a power loss at low rpm and jerks and shudders> untill about 3000 rpm when it will kick back in and perform. I have> changed the fuel filter, have new plugs, wires, dist/cap/rotor and all my> vac lines appear in good shape. Anybody delt with this please drop a line.


-------------------­------

What's the details on your timing belt . . It sounds like it's off a
tooth or two. Is it better once the engine warms up, or just the same?

'Curly'

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Zakatak 13 April 2005 23:43:40 permanent link ]
 Not sure about the timing belt. That is something that I don't have
knowledge of. The two other posts metioned EGR and Tandem Valves. The
tandem appears to be fine but I can't locate the EGR.

Add comment
Zakatak 13 April 2005 23:44:45 permanent link ]
 Where is the EGR on this car? Guess I should buy another Haynes manuel.

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Chopface 14 April 2005 02:01:44 permanent link ]
 Zakatak wrote:> Not sure about the timing belt. That is something that I don't have> knowledge of. The two other posts metioned EGR and Tandem Valves. The> tandem appears to be fine but I can't locate the EGR.>

Where are you located? I think a lot of US models from that vintage do
not have the EGR if they are not California models. Possibly one trim
line does have it regardless of being a Cali model, maybe the STD (hatch
only trim). I'm not sure though. My '91 Si does not have an EGR valve.

Mark
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Gordon McGrew 14 April 2005 03:27:40 permanent link ]
 On Tue, 12 Apr 2005 19:59:08 -0700, jim beam <nospam@example.net­>
wrote:
Zakatak wrote:>> I have a 1990 Honda Civic 4 door with 196k. The car has been running great.>> The car now seems to have a power loss at low rpm and jerks and shudders>> untill about 3000 rpm when it will kick back in and perform. I have>> changed the fuel filter, have new plugs, wires, dist/cap/rotor and all my>> vac lines appear in good shape. Anybody delt with this please drop a line.>>
try the thermostat. it you're still on the original, it'll almost >certainly be out of spec. by now. mine was & changing it removed >symptoms like you describe. also check the operation of the throttle >body's tandem valve.

Also, check to make sure that the timing advance mechanisms in the
distributer are working properly.

Add comment
TeGGer® 14 April 2005 06:01:25 permanent link ]
 Chopface <thename_is_slick@y­ahoo.com> wrote in
news:d3k4s9$htp$1@n­ews.doit.wisc.edu:
Zakatak wrote:>> Not sure about the timing belt. That is something that I don't have>> knowledge of. The two other posts metioned EGR and Tandem Valves. The>> tandem appears to be fine but I can't locate the EGR.>>
Where are you located? I think a lot of US models from that vintage do > not have the EGR if they are not California models.



The automatic had EGR, the manual did not. True for all states and Canada.



--
TeGGeR®

The Unofficial Honda/Acura FAQ
www.tegger.com/hond­afaq/
Add comment
TeGGer® 14 April 2005 06:05:26 permanent link ]
 gRmEcMgOrVeEw@mindsp­ring.com (Gordon McGrew) wrote in
news:2mar51tcelrscr­cc8786v4bg1qojebccea­@4ax.com:
On Tue, 12 Apr 2005 19:59:08 -0700, jim beam <nospam@example.net­>> wrote:>
Zakatak wrote:>>> I have a 1990 Honda Civic 4 door with 196k. The car has been running>>> great. The car now seems to have a power loss at low rpm and jerks>>> and shudders untill about 3000 rpm when it will kick back in and>>> perform. I have changed the fuel filter, have new plugs, wires,>>> dist/cap/rotor and all my vac lines appear in good shape. Anybody>>> delt with this please drop a line. >>>
try the thermostat. it you're still on the original, it'll almost >>certainly be out of spec. by now. mine was & changing it removed >>symptoms like you describe. also check the operation of the throttle >>body's tandem valve.>
Also, check to make sure that the timing advance mechanisms in the> distributer are working properly.>



You mean like vacuum advance and centrifugal weights? Ain't no such thing
in the '90 Civic.

--
TeGGeR®

The Unofficial Honda/Acura FAQ
www.tegger.com/hond­afaq/
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Zakatak 15 April 2005 00:17:22 permanent link ]
 I have been unable to locate an EGR on this car. I just bought a good book
for it too and it is not anywhere to be found. This si my first time
working with Hondas. i've been a Ford man my whole life this on is the old
ladies. I want my SHO back so I need to fix this! I'm changing the therm
right now and have replaced the rotor and cleaned the points very well.
Thgis is just confusing to me. Thank for your input everybody. Hopefully I
can resolve it eventually.

Add comment
TeGGer® 15 April 2005 03:42:47 permanent link ]
 "Zakatak" <zakatak23831@yahoo­.com> wrote in
news:a11e1430d6af79­bdd479a55acd617175@l­ocalhost.talkaboutau­tos.com:
I have been unable to locate an EGR on this car. I just bought a good> book for it too and it is not anywhere to be found. This si my first> time working with Hondas. i've been a Ford man my whole life this on> is the old ladies. I want my SHO back so I need to fix this! I'm> changing the therm right now and have replaced the rotor and cleaned> the points very well. Thgis is just confusing to me. Thank for your> input everybody. Hopefully I can resolve it eventually.>


If you have a manual transmission, then you have no EGR.

The EGR controls are in a big black box about 8"x6"x3" on the firewall next
to the wiper motor.

Terry mentions the ECU (the "computer"). He's had some interesting
experiences with flood-damaged ECUs but Honda ECUs are usually
exceptionally reliable. For now I would rule out the ECU.

That leaves everything else... :-/­

Does the car seem to take a long time for the temperature gauge to get
close to the half-way mark?

--
TeGGeR®

The Unofficial Honda/Acura FAQ
www.tegger.com/hond­afaq/
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Zakatak 15 April 2005 05:11:27 permanent link ]
 Yes it does take a long time to get the temp up. I just changed the therm
from a 165 that was in there to the OEM spec 180. i have not taken a good
drive to check and see if the temp problem is resolved by this fix. As far
as the EGR, I still cannot locate the actuall vavle I am in the dark here
on the east coast right now so I cannot look for it or the box. I will
peek at this tom. Again guys, thank you very much for all your input.
Zak

Add comment
TeGGer® 15 April 2005 05:34:25 permanent link ]
 "Zakatak" <zakatak23831@yahoo­.com> wrote in
news:8f68245fd629f7­77687dd0ecd8e37c4c@l­ocalhost.talkaboutau­tos.com:
Yes it does take a long time to get the temp up. I just changed the> therm from a 165 that was in there to the OEM spec 180.



OEM spec is ***194*** not 180!!!

180 would be an aftermarket thermostat.

Are you actually using an OEM thermostat? Or not?


--
TeGGeR®

The Unofficial Honda/Acura FAQ
www.tegger.com/hond­afaq/
Add comment
Elle 15 April 2005 06:16:42 permanent link ]
 Is the oxygen sensor the original?

For under $50 (and your own labor, which is minor for this), you can put in
a new OEM O2 sensor. Your symptoms are so severe I'd expect a Check engine
light, but maybe not always.


"Zakatak" <zakatak23831@yahoo­.com> wrote> I have a 1990 Honda Civic 4 door with 196k. The car has been running
great.> The car now seems to have a power loss at low rpm and jerks and shudders> untill about 3000 rpm when it will kick back in and perform. I have> changed the fuel filter, have new plugs, wires, dist/cap/rotor and all my> vac lines appear in good shape. Anybody delt with this please drop a line.>


Add comment
Zdrepaul 21 April 2005 20:54:50 permanent link ]
 i have a 92 Accord that does the exact same thing = slow / no power on
acceleration up to ~2500rpm. plugs ok, wires ok, cap ok, rotor ok,
injectors ok, fuel filter ok, fuel pump ok, o2 sensor ok, thermostat ok /
temp normal. i don't know how to chk the ECU / ECM or the ignitor module
(where located?) or the distributor coil. any assistance would be GREATLY
appreciated

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CarGuru > Honda > 1990 Civic Power Loss and Shudders 21 April 2005 20:54:50

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