Hello all, here is a quick story about my car.

Its a 91 Camaro RS 305 Auto. It has 191k miles. I start it up in the morning, let it warm up for 10 minutes. I then leave and get down the road. After about 5 miles of driving, the car starts to stumble and shake badly whenever you are pushing down on the throttle to about 1/2 throttle. It will do this at any speed. Please help.

Rick

 

Fuel pump? I had similar issues on the highway until I basically stalled out last weekend. Car ran fine cold though. It's still in the shop so I haven't had a chance to test it out. They're replacing the pump (it wasn't generating sufficient pressure in gear) and doing a tune up. I have an '89 T/A with a 305 TPI. Everything's original, which is nice until you take into account that original parts tend to dry rot and fail after 21 years.

Also make sure your fuel lines and injectors are clean.

Just my 2 cents...unlike many people on this forum, I am not mechanically inclined. I understand basic theory but lack the ability to apply it.

Good luck!

 

There are sometimes when the car will run fine. Yesterday the car ran fine, no noticable stumbling. Today, it was kicking like a bull when accelerating. This is a TBI car as well.

Rick

 

Does it happen when the engine is cold or warm? Also, is your engine tuned port or throttle body injected?

 

Its TBI. Also, it does it when its warmed up, but my temp gauge shows that its barely above 100 while driving. If the car is sitting and idleing, the car will show up towards 200.

Rick