I have a 2.8L MPFI 88 Camaro and when it first starts no matter on a hot or cold day it hesitates when you push the gas pedal. It's like a delay in when you push down the pedal and when the car reacts to it. After driving it a mile or two there is no more hesitation. It only does this at slow speeds like around a parking lot or something. Can anyone give me some clues to what it might be? I have replaced my cap and rotor and cables recently. I replaced my plugs about 6 months ago so I doubt it's any of that stuff. Well any help is appreciated.

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88 Camaro Sport Coupe
2.8L V6 173ci
K&N Air Filters
JET Underdrive Pulleys

 

Mine went away after being service by a mechanic, but it's back now. Try replacing your O2 sensor (mine got replaced, but started hesitating bad again after an anti-freeze leaked dripping right on it for about a week.) and make sure your trottle body and intake are clean.

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1985 Camaro SC - 2.8L, auto.

http://www.xenodrgn.f2s.com/Frontright.jpg

 

sounds like spark plugs

 

My spark plugs are less than 800 miles old, they're Bosch Platinum standard ones (none of that 'V' or '+4' crap.

Another thing it could be, that I was just alerted to on another post, is the pickup coil (not to be confused with the ignition coil).

More comments from the peanut gallery.

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1985 Camaro SC - 2.8L, auto.

http://www.xenodrgn.f2s.com/Frontright.jpg

 

You can test the resistance of the ignition and pickup coils with an ohm meter. A Haynes repair manual will show you how and give you the specs. I had a no-spark starting problem the other day and tested both and they were fine. I then took out the module and had it tested at AutoZone. They said it was fine, and after I put it back in, the car ran fine. Until the next day. Took it out again and this time it checked out bad. It's been OK for 4 days now. Cross my fingers.

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92 RS w/t-tops 305 TBI Auto.
170K miles and don't burn a drop o'oil
-K&N Truck filter #1500 w, open ele.
air cleaner
-Dynomax 2 1/2" cat-back
-B&M TransPak
-Jet Stage2 Chip
-180* T-Stat w/ 185* Fan Switch
-JVC CD--Alpine speakers & 4ch. amp
Rockford 2ch. to 2 MTX 12" subs

 

Josh, there's a bunch of simple things that could cause that; you should take care of a major tuneup first. A tuneup's much more than plugs & wires... for the full V6 (and adaptable to V8's) major tuneup list, read this old message of mine:

https://www.thirdgen.org/messgboard/...ML/000545.html

If that doesn't fix the problem, at least you have less to guess about. (Plus, you'll probably give your car some more ***** along the way!)


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

 

Thanks Tom for the link, I've done pretty much all of that tuneup stuff. I have changed oil, oil filter, trans filter, trans fluid, fuel filter, plugs, plug wires, distributor cap, rotor, and complete brake job all within the last year. The only thing I have not done is clean the intake or change the coolant about. Thanks for the tips though.

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88 Camaro Sport Coupe
2.8L V6 173ci
K&N Air Filters
JET Underdrive Pulleys

 

Did you check your base timing after the new cap & rotor? Changing those parts can alter the timing a bit. If it retarded it, even a little, then that would cause less throttle response, i.e. a bog or hesitation.

And like my repley earlier. Check stuff before you change it. That's the easiest way. Again, that Haynes manual will tell you a lot of this stuff. Not everything, but it's written for Shade Tree mechanics like us.

GL

AJ

 

I have not checked the timing, but it was giving me this problem before I changed the cap, rotor, and wires. I ordered a new O2 sensor but I dunno if that will do anything.

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88 Camaro Sport Coupe
2.8L V6 173ci
K&N Air Filters
JET Underdrive Pulleys

 

I know this is an old topic, but did we ever come to a conclusion?

 

We didn't really come to a conclusion. I had my ignition coil replaced cause it went bad, and well I still have the hesitation. It hesitates all on start up and when I am just starting it up after a long time. But it runs pretty good, I just guess that's how the car will be.