Problem: Car has rough idling in 1st gear.

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oLLie

Diamond Member
Jan 15, 2001
5,203
1
0
Hi ATOT car guys,

I've been having a problem lately where my car has very rough idling at certain times in first gear. It used to idle very rough in Park and Neutral, and it still does but to a lesser extent. Anyway, when I'm in first gear and I accelerate, but not enough for it to shift into second gear, the rpm's will drop really low after I step off the gas. The whole engine compartment shakes, and some warning lights in the dash flicker for a second, then the rpm's jump back up to normal idle (~1k rpm). Very seldomly, when I accelerate and step off the pedal, the rpm's will drop so low that the engine will just cut out completely. Happened once on the freeway, but it was bumper to bumper, so I just shifted to park and started the car again. Any ideas on what's wrong with my car? Thanks guys,

Ollie
 
H

HappyPuppy

Lifer
Apr 5, 2001
16,997
2
71
I realize that this may sound farfetched, but if my car was acting like that I would take it to a mechanic to get it checked out. It could be something that is getting worse by the day and will cost you more the longer you wait.
 
E

Eli

Super Moderator | Elite Member
Oct 9, 1999
50,419
8
81
My guess would be vacuum problems. Have all your hoses and lines checked out.
 
O

oLLie

Diamond Member
Jan 15, 2001
5,203
1
0
Originally posted by: slikmunks
Originally posted by: Night201
What's the TPS?
Click to expand...

throttle position sensor
Click to expand...

Heh, I thought he was gonna say something about TPS reports. :p

I guess I'll take the mechanic suggestion as soon as I find a new mechanic to deal with, I'm sick of these crooks I've been going to.

THANKS guys!
 
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