Car bogs, stumbles, misses, but only when hot.
05-30-2005, 08:19 PM
#1
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Car bogs, stumbles, misses, but only when hot.
My car runs like an absoulte champ for about 20 mins and then it hits the fan. It will start to miss and the car will be jerky. If you give it gas it doesnt go anywhere and just backfires and I have to limp home. Wait a while start it up and its fine. Its probably ignition related but does the fact that its only when its been run for a while point more towards one thing like the coil, opti, plugs/wires. I think Im going to change the plugs/wires first and rule out cheaper stuff first, sound like a good idea? Thanks.
05-30-2005, 08:38 PM
#2
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Re: Car bogs, stumbles, misses, but only when hot.
Sounds like the sheilding on your spark plug wires are giving out when they get hot. I'd definately start with the plugs and wires, then the coil and the fuel spark module, and then the opti. I'd say your problem is more than likely not the opti. Usually when the opti decides to go out it just craps out all together.
Last edited by 96vortechSS; 05-30-2005 at 08:41 PM.
05-31-2005, 03:34 PM
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Re: Car bogs, stumbles, misses, but only when hot.
Let Me Know What Happens My Car Is Doing The Same Thing, I Changed The Driver Side Plugs And It Does Drive A Little Bit Better But I Am Going To Bring It To The Shop To Get The Others Changed. Keep Me Informed And I Will Do The Same For U
06-01-2005, 09:01 AM
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Re: Car bogs, stumbles, misses, but only when hot.
Originally Posted by moparman
I'd look at the coil and ignition module.
06-01-2005, 09:15 AM
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Re: Car bogs, stumbles, misses, but only when hot.
Originally Posted by MRBoss429x
When you say that, is it two seperate parts or one? Can get it it/them at autozone?
06-01-2005, 12:14 PM
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Re: Car bogs, stumbles, misses, but only when hot.
The coil and ignition module are two separate pieces. Autozone can test these. Take'em off and have Autozone test them, and hope you get an employee who knows how to run the proper test.
06-01-2005, 01:05 PM
#13
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Re: Car bogs, stumbles, misses, but only when hot.
Originally Posted by Gripenfelter
Put 2 fat washers behind each coil stud. Heat from the head could be causing the ICM or coil to miss.
06-01-2005, 02:17 PM
#15
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Re: Car bogs, stumbles, misses, but only when hot.
I had this exact problem when I got the stroker in my 94... I tryed everything. then one day I was under the car and noticed this gapping hole on the under side of the intake elbow... the plug for the silencer on the under side of the elbow had fallen out, the car ran fine cold cause it doesn't start running lean till the car goes into to operating temp! It's easy to check and you dont expect it and it's an easy fix. just my 2 cents if nothing else seems to work