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Discussion Starter #1
'91 caprice 5.7

PROBLEM

sometimes the car will jerk back and forth at red lights lights and take off
(it seems to hesitate, move, hesitate and then finally take off) and other times it'll run very smoothly.

on occasion it will die at lights.

any one have an idea?
 

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Divine Autosound
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2,168 Posts
I would drop the transmission pan and see what condition the fluid is in. The fluid should be red, not brown, and shouldn't smell burnt. Start with just a new transmission filter, and refill with fluid. Next could be the torque convertor, clutch packs, or modulator. Could be multiple things. But you want to start with the cheapest route first, and go from there.
 

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8th Gen Antagonist
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Does it die just sitting at lights? Or does it die as you stop? Do you get similar symptoms during driving at any time?
 

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Discussion Starter #4
It does die at lights, and it dies when im slowing down to lights or anything at all, but it doesn't do it every time or all the time.

And i dont think its ever died while driving, the only thing that happens during driving is the car will speed up on its own while im holding the pedal steady but this doesnt happen all the time either.
 

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Divine...are you for real?...dropping the trans is the first thing you would do?...OMG...drop the trans. I suppose for a ticking lifter you should pull the engine and check the bearings...LOL.

Betty...check out the EGR valve and/or EGR Solenoid, if it's sticking open once and a while it will act like you describe.
 

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Discussion Starter #6
Divine...are you for real?...dropping the trans is the first thing you would do?...OMG...drop the trans. I suppose for a ticking lifter you should pull the engine and check the bearings...LOL.

Betty...check out the EGR valve and/or EGR Solenoid, if it's sticking open once and a while it will act like you describe.
i've changed the egr that was one of the first things i did over a year ago when this problem started. how do i check the solenoid?
 

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Divine Autosound
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Divine...are you for real?...dropping the trans is the first thing you would do?...OMG...drop the trans. I suppose for a ticking lifter you should pull the engine and check the bearings...LOL
I said transmission pan, not transmission. New fluid and filter. Not the whole Damn thing. Lol.
 

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Sorry about that Divine.lol Still not the first thing I's look at. Betty, try unpluging the vac line to the EGR valve. Plug the line with a screw , see what that does.
 

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Discussion Starter #9
I have a new quetion and cant figure out how to start a new thread.

I bought a 77 impala, really nice... fuel gauge comes and goes already checked ground what else could it be? it comes on when i put gas in and seems to stop working after i hit a bump in the road and then sometimes will come back on.
 

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Super Moderator
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Bad connection on the top of the tank where the vehicle harness plugs into the tank.
Bad sending unit in the tank.
Loose connection at the cluster.
 

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The Engineer That Could
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Just a thought, feel your exhaust pipe. It might be something like 2 pistons missing and the engine can't deal with it and it kills itself. That's what was happening to mine. It's a really quick check
 
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