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Old 12-08-2008, 10:16 AM   #1
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stuttering in accelerationm and low idle

hey all, i have posted on this a few weeks back, but I have still not found out the problem.

When I am accelerating, the engine seems to cough and sputter, particularly if i am putting a little bit of gas into it. It also seems to happen a bit more often if the engine is warm. It can happen in any gear, (98 tj 5 spd 4 cyl), but seems to happen a bunch in second... i'm thinking i may just naturally accelerate a bit harder when in second.

additionally, when i start up i find the tj idling around 500 rpm, which is lower than anything else i have driven. also, if i am backing out of a parking space, doing a three point turn, or braking suddenly, especially if the jeep has just been started, the engine actually dies.

I have replaced the tps, ran seafoam through the air intake and through the gas tank, changed the oil, changed the plugs, cap, wires...

does anybody have a clue.... ever experienced this problem before.

thanks in advance,
PT

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Old 12-08-2008, 10:21 AM   #2
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Mine only does this for the first 2 mins of driving- really cold out and just start it up. It is kinda fun i dunno why it does that only vehicle to ever do it.

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Old 12-08-2008, 01:27 PM   #3
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Quote:
Originally Posted by PTup View Post
I have replaced the tps, ran seafoam through the air intake and through the gas tank, changed the oil, changed the plugs, cap, wires...
PT
next step i'd say is remove the throttle body and clean it thoroughly, possible iac problem also, cleaning throttle body and iac is usually the first place to start with this problem, most common, and cheapest fix.
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