Question about 1996 Chevrolet Cavalier
We started with replacing the igniton Module, then found that the starter was cracked and replace it. Checked all plug wires, they are fine, tested crank and cam senors nothing wrong there. Replaced the CPU car still on runs on 2 cylinders. Please Help. Oh and yes we did have the cpu flashed to car.
You said the the 2 cylinders in the middle has no fire. That will be 2 & 3. It has 2 coil packs. One runs 1 & 4 the other runs 2 & 3. Check the coil pack that runs 2 & 3....The firing order is 1,3,4,2... It runs because it hits,miss,hits,miss....just enough to keep it running....
Posted on Jun 28, 2009
First of all stop spending money on parts you need to do a compression test on all four cylinders. remember it takes 90 pounds to fire fuel if you have two cylinders at 145 pounds or 150 pounds then your two bad cylinders are 30 pounds or 50 pounds then theres your problem. you could have burnt valves or possibly the engine jumped timing. rule of thumb when ever you have a running problem always check engine compression before you do any repairs. and check for trouble codes.
terry - master tech
Posted on Jun 18, 2009
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Posted on Jan 02, 2017
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