radiopat Posted July 25, 2003 Report Share Posted July 25, 2003 I'm beginning to suspect the hesitating problem on my '88GP may be either the tb or egr. In park, when I rev it to 1.5 to 2.5K it's ok, but at 3K it starts hesitating again. Also, could a clogged cat. converter cause this? The car has 67K miles on it... perhaps age may have something to do with it. Again, thanks for all of your help and advice. Pat Quote Link to comment Share on other sites More sharing options...
KrazyCutlass1995 Posted July 25, 2003 Report Share Posted July 25, 2003 have u checked the plugs ? i have had this problem at about the same rpm range and i had like 2 foud spark plugs Quote Link to comment Share on other sites More sharing options...
gmrulz4u Posted July 25, 2003 Report Share Posted July 25, 2003 Have you done the common EGR check by pushing UP on the EGR diaphragm with the engine idling? By doing this, you can see if your engine "stumbles" and almost "dies", which is what it SHOULD do. If the idle does NOT change at all when you do this, it means your EGR is stuck open or is leaking somewhere... Also, your particular EGR Valve, the Integrated Electronic one, has a changeable Air Filter that, if plugged-up, will make it so that it will be stuck slightly OPEN at all times, causing all kinds of problems...a New EGR Filter for it only costs like $7... I wish I could Scan your car, but you live too damn far! Quote Link to comment Share on other sites More sharing options...
mfewtrail Posted July 25, 2003 Report Share Posted July 25, 2003 There are many things that could cause hesisitation...fuel pump may going out slowly, FPR might be dumping too much fuel into the car, injector(s) might be bad, ignition components could be bad....err, you get the point, try getting it scanned somewhere to see if all the sensor readings and whatnot are normal(autozone will do it for free). Does the exhaust smell overly rich...very gassy smell? Does the exhaust backfire? more info would help in narrowing your problem down to a certain extent Quote Link to comment Share on other sites More sharing options...
gmrulz4u Posted July 25, 2003 Report Share Posted July 25, 2003 mfewtrail: radiopat has already posted about this same symptom bellow, HESITATES WHEN COLD... http://www.w-body.com/forum/viewtopic.php?t=5943 That's the only reason I'm trying to narrow it down for them, because apparently the car runs fine/normal after it's warmed-up... I guess he should have continued it in the other Thread, but he's fairly new to the forum... Quote Link to comment Share on other sites More sharing options...
z24 turbo 93 Posted July 26, 2003 Report Share Posted July 26, 2003 okay if you have it in park and are reving it to 3k then it will hesitate because the computer starts shuting the fuel off i think. i know in every cavalier i have that when it is in park and you rev it to 3k that it hesitates and doesnt' want to go over that. so if you rev it to 3k in park and it hesitates it is normal. ryan Quote Link to comment Share on other sites More sharing options...
Redfox340 Posted July 26, 2003 Report Share Posted July 26, 2003 I'm beginning to suspect the hesitating problem on my '88GP may be either the tb or egr. In park, when I rev it to 1.5 to 2.5K it's ok, but at 3K it starts hesitating again. Also, could a clogged cat. converter cause this? The car has 67K miles on it... perhaps age may have something to do with it.Again, thanks for all of your help and advice. Pat Funny.... http://www.w-body.com/forum/viewtopic.php?t=6020&highlight= You guys need to meet up and see who kills their motor first. Z24Turbo is right, it's your Rev Limiter. Read other post, I don't think theres a need to repeat the same solution. - Erik Quote Link to comment Share on other sites More sharing options...
radiopat Posted July 26, 2003 Author Report Share Posted July 26, 2003 My apology. I should have continued on the same thread but had something else on my mind. The problem with the gp may be one or several things wrong with it. I guess I'll need to take it back to the shop sometime to see what else might be causing it, but don't want to spend a whole lot of money due to it's age. I was hoping it may something I could repair. Pat Quote Link to comment Share on other sites More sharing options...
Guest RedCutlassSL Posted July 26, 2003 Report Share Posted July 26, 2003 why does the age matter? it shouldn't Quote Link to comment Share on other sites More sharing options...
gmrulz4u Posted July 26, 2003 Report Share Posted July 26, 2003 why does the age matter? it shouldn't EXACTLY!! It's like saying: "We'll, my cars just a '67 Camaro, so it's too old to do any work on"...right... RedCutlassSL took the words right out of my mouth! Quote Link to comment Share on other sites More sharing options...
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