Ignition issue?
Thread Starter
Heel & Toe
Joined: May 2012
Posts: 19
Likes: 0
From: PA
Ignition issue?
I just got my 79 L82 back from having the q jet re furbished. The car is still not idling well at operating temperature and when I shift into reverse and hit the gas to move the car it cuts out under load. There is also a "pulling back" on the open road at about 3500 rpm. Almost like a loss of power as I step on the gas.
I am thinking an ignition problem or maybe distributor cap? I read somewhere that the HEI module may be defective? Anyone else experienced this?
I am thinking an ignition problem or maybe distributor cap? I read somewhere that the HEI module may be defective? Anyone else experienced this?
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
The ignition module (mounted inside distributor) is a common failure item after some years of heat/vibration/use. Any of the ignition components in the HEI system could cause your problem: cap, wires, plugs, coil (mounted in distributor cap), module. You also need to verify that your distributor has a good path to 'ground' so that its operating voltage is adequate.
It is also possible that your problem is caused by 'fuel starvation' from blockage/restriction in the fuel line path, filter, or incorrect float level.
It is also possible that your problem is caused by 'fuel starvation' from blockage/restriction in the fuel line path, filter, or incorrect float level.
Tech Contributor
Joined: Jun 2004
Posts: 20,905
Likes: 962
From: I tend to be leery of any guy who doesn't own a chainsaw or a handgun.
I just got my 79 L82 back from having the q jet re furbished. The car is still not idling well at operating temperature and when I shift into reverse and hit the gas to move the car it cuts out under load. There is also a "pulling back" on the open road at about 3500 rpm. Almost like a loss of power as I step on the gas.
I am thinking an ignition problem or maybe distributor cap? I read somewhere that the HEI module may be defective? Anyone else experienced this?
I am thinking an ignition problem or maybe distributor cap? I read somewhere that the HEI module may be defective? Anyone else experienced this?
Melting Slicks
Joined: Dec 2009
Posts: 3,233
Likes: 657
From: Thunder Bay
I am thinking an ignition problem or maybe distributor cap? I read somewhere that the HEI module may be defective? Anyone else experienced this?[/QUOTE]
In my experience the HEI module either works or it doesn't. Any time I have seen one fail, it resulted in no spark at all. Just about any other ignition component could cause the problem you are describing, though.
In my experience the HEI module either works or it doesn't. Any time I have seen one fail, it resulted in no spark at all. Just about any other ignition component could cause the problem you are describing, though.
