Surging idle, stalling
#1
Thread Starter
Senior Member
Joined: Apr 2000
Posts: 788
Likes: 0
From: Wichita, KS
Car: 92' RS
Engine: LO3
Transmission: Probuilt 700R4
Axle/Gears: 3.70 9-bolt
Surging idle, stalling
Finally getting the car up and running after sitting a year. I replaced all the fuel, injectors, spark plugs and oil.
Well the car runs fine when driving but at idle the rpms vary between 500-1000 RPM and sometimes when it falls to 500 it just dies. I have to two-foot it at lights to keep it from stalling.
Ideas on where to start looking?
Well the car runs fine when driving but at idle the rpms vary between 500-1000 RPM and sometimes when it falls to 500 it just dies. I have to two-foot it at lights to keep it from stalling.
Ideas on where to start looking?
#2
Junior Member
Joined: Apr 2012
Posts: 3
Likes: 0
From: NW Arkansas
Car: 1989 Firebird
Engine: 350 TBI
Transmission: 700R4
Axle/Gears: Stock
Re: Surging idle, stalling
I had similar problems when I was doing a full engine swap on my firebird, which sat for probably 6-8 months before being ready... but it ended up being the line to the fuel pump inside the tank. It had rotted and gotten a hole in it, might be something to check.
Finally getting the car up and running after sitting a year. I replaced all the fuel, injectors, spark plugs and oil.
Well the car runs fine when driving but at idle the rpms vary between 500-1000 RPM and sometimes when it falls to 500 it just dies. I have to two-foot it at lights to keep it from stalling.
Ideas on where to start looking?
Well the car runs fine when driving but at idle the rpms vary between 500-1000 RPM and sometimes when it falls to 500 it just dies. I have to two-foot it at lights to keep it from stalling.
Ideas on where to start looking?
#3
Thread Starter
Senior Member
Joined: Apr 2000
Posts: 788
Likes: 0
From: Wichita, KS
Car: 92' RS
Engine: LO3
Transmission: Probuilt 700R4
Axle/Gears: 3.70 9-bolt
Re: Surging idle, stalling
That was the source of the problem with it a couple years ago. I dropped the tank then and replaced the pump and soft line splice to the hard line. I had let it sit with low fuel and that little rubber splice line split open.
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MikkoV
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09-09-2015 04:25 PM