Stumbling during acceleration
Thread Starter
Intermediate
Joined: Aug 2001
Posts: 37
Likes: 0
From: Temperance Mi
Stumbling during acceleration
I have an L-98 Vette that doesn't want to accelerate smoothly. If I start to apply throttle smooth and evenly the car will sort of stumble in a few spots on the way to WOT, remimds me of if you hit a rev limiter. Other than this the car runs great, cruises fine, if you stomp the pedal it takes off just fine, it is even still averaging 20 mpg. I ran a diagnostic by shorting two pins in the connector and it says there is nothing wrong. The injectors have less than 10,000 on them and the plugs, cap, and rotor about 3,000. I thought it may be the throttle position sensor but am not sure. Anyone else experienced this and may have an idea for me?
Drifting
Joined: Aug 2000
Posts: 1,251
Likes: 0
Re: Stumbling during acceleration (White91)
Hows the fuel filter?Fuel pressure?Could be a vacume leak.
Did the car start doing this all of a sudden or has it slowly been getting worse.Could be water in the gas.
Could even be faulty distributor.
Tell us more.
Did the car start doing this all of a sudden or has it slowly been getting worse.Could be water in the gas.
Could even be faulty distributor.
Tell us more.
Thread Starter
Intermediate
Joined: Aug 2001
Posts: 37
Likes: 0
From: Temperance Mi
Re: Stumbling during acceleration (nobodyunknown)
Never gave the fuel filter a thought, probably not a bad idea. This is the first I ahve noticed the problem. I gassed up for the weekend and headed about 150 miles out of town and back and noticed it on the way home. I was on the express way in 5th doing about 60 and it wouldn't pass a Dakota until I stomped it and then it took off like normal. When I got off and tried to pull away from the stop it was like I was trying to engage the clutch without any gas it started to stall and I gave it enough gas and then it went. I had a vacuum line that had a wear hole in it and since I replaced it the car starts hard when I haven't driven it in a while (like it will do every Saturday morning.) I don't know what it did I just saw the hole and replaced it over the past winter. It ran over the passenger valve cover and hooked to a little black box that is suspended over the valve cover and the other end disappears under the washer solvent bottle. Sorry I don't know better what it was but that was when I first noticed anything out of the ordinary.
Drifting
Joined: Aug 2000
Posts: 1,251
Likes: 0
Re: Stumbling during acceleration (White91)
Is there any chance of bad gas?Did the car get caught outside in the rain?
If not then I think your on the right track looking for another vacume leak.You should be able to hear it.
I've an 84 so Im not farmiliar with the vacume hoses.
Sounds like the car doesnt get driven very often.It could need a tune up.
If not then I think your on the right track looking for another vacume leak.You should be able to hear it.
I've an 84 so Im not farmiliar with the vacume hoses.
Sounds like the car doesnt get driven very often.It could need a tune up.
