Engine Surge/Hesitate

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CarGuru > Open discussion > Engine Surge/Hesitate 8 May 2005 20:28:14

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Engine Surge/Hesitate
CadillacKid 8 May 2005 05:58:20
	97 Concours When in gear, during accleration, around 2500-3500 RPMs the engine begins to surge and hesitate. I took the car to an independant mechanic and they hooked my car up to their computer, when doing so, my car proceded to reset their computer. They made mutilple attempts to rescan my cars computer with theirs, but it did the same thing each time. From the mechanics knowledge of cars he said that he has it narrrowed down to either the plugs, plug wires, or coil pack. I already replaced the fuel regulator, fuel filter, air filter, oil filter + change. One thing that was also noticed when I replaced the air filter, the Air Screen in the air intake was dameged and bent up. He said that it would be part of the problem but not entirely. Any ideas or suggestions would be greatly appreciated. Thank you! -- Posted using the http://www.autoforumz.com interface, at author's request Articles individually checked for conformance to usenet standards Topic URL: http://www.autoforumz.com/Cadillac-Deville-Engine-Surge-Hesitate-ftopict119103.html Visit Topic URL to contact author (reg. req'd). Report abuse: http://www.autoforumz.com/eform.php?p=578250
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MisterSkippy 8 May 2005 18:31:11 [ permanent link ]
	On 7 May 2005 20:58:20 -0500, CadillacKid <UseLinkToEmail@AutoForumz.com> wrote: 97 Concours>When in gear, during accleration, around 2500-3500 RPMs the engine>begins to surge and hesitate. I took the car to an independant>mechanic and they hooked my car up to their computer, when doing so,>my car proceded to reset their computer. They made mutilple attempts>to rescan my cars computer with theirs, but it did the same thing each>time. From the mechanics knowledge of cars he said that he has it>narrrowed down to either the plugs, plug wires, or coil pack. I>already replaced the fuel regulator, fuel filter, air filter, oil>filter + change. One thing that was also noticed when I replaced the>air filter, the Air Screen in the air intake was dameged and bent up.>He said that it would be part of the problem but not entirely. Any>ideas or suggestions would be greatly appreciated. Thank you! Based on the symptoms you describe there could be a blockage in the air intake system, essentially strangling the engine for air. I'd make sure it is clear all the way up to the throttle body. Could some critter have tried to build a nest in the air intake? Happened on my wife's Camry. On another note, how many miles on the car? Have the plugs and wires ever been changed? FWIW YMMV DFB
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CadillacKid 8 May 2005 20:28:14 [ permanent link ]
	"MisterSkippy1" wrote: > On 7 May 2005 20:58:20 -0500, CadillacKid > <UseLinkToEmail@AutoForumz.com> wrote: > 97 Concours > >When in gear, during accleration, around 2500-3500 RPMs the > engine > >begins to surge and hesitate. I took the car to an > independant > >mechanic and they hooked my car up to their computer, when > doing so, > >my car proceded to reset their computer. They made mutilple > attempts > >to rescan my cars computer with theirs, but it did the same > thing each > >time. From the mechanics knowledge of cars he said that he > has it > >narrrowed down to either the plugs, plug wires, or coil pack. > I > >already replaced the fuel regulator, fuel filter, air filter, > oil > >filter + change. One thing that was also noticed when I > replaced the > >air filter, the Air Screen in the air intake was dameged and > bent up. > >He said that it would be part of the problem but not > entirely. Any > >ideas or suggestions would be greatly appreciated. Thank you! > Based on the symptoms you describe there could be a blockage > in the > air intake system, essentially strangling the engine for air. > I'd > make sure it is clear all the way up to the throttle body. > Could some > critter have tried to build a nest in the air intake? Happened > on my > wife's Camry. > On another note, how many miles on the car? Have the plugs and > wires > ever been changed? > FWIW > YMMV > DFB I have the air intake taken apart all the way up to the throttle body. The inside of the throttle body appears clean and normal as far as I can tell. The weirdest thing is that the surging and hesitation only occurs during the 2500-3500 RPM range. As far as I know, in the 81,000 miles that the car has driven, the plugs, wires, or coil pack haven’t been changed. So I figure that I should go ahead and get those changed, but if the problem occurs somewhere else I would like to fix that problem first. -- Posted using the http://www.autoforumz.com interface, at author's request Articles individually checked for conformance to usenet standards Topic URL: http://www.autoforumz.com/Cadillac-Deville-Engine-Surge-Hesitate-ftopict119103.html Visit Topic URL to contact author (reg. req'd). Report abuse: http://www.autoforumz.com/eform.php?p=578696
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CarGuru > Open discussion > Engine Surge/Hesitate 8 May 2005 20:28:14

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Engine Surge/Hesitate

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