Engine Missing after 2 hours
#1
Engine Missing after 2 hours
Got a real weird problem. Only shows up after driving 2 hours or more at high speed on interstate (speed limits are 70MPH down here).
First, specifics - 2001 Isuzu Trooper, 3.5L engine.
Tried fuel, sea foam injector cleaner, fuel filter, air cleaner, and plugs. Sometimes I get code P300 (random misfires), sometimes no codes.
Returning home on a 500 mile drive today it got so bad that had a flashing Check Engine Light and had to pull over, but when I had mechanic check there were no stored codes.
Of course the problem only occurs when I am far from home and on the middle of the interstate.
In trouble shooting I tried putting cold water on the computer to see if it was a heat problem. It appeared to clear up the problem, at least for a little while.
I appears the problem takes longer to show up if I don't run the AC, making me believe it is heat related.
Except - got close to home and stopped in at the mechanics. I had cooled the computer enough to not have problems but when I tried to pull out the engine died. Desperate I pulled the plastic cover off the intake and cooled the ignition control module (ice chips). Worked like a charm.
So now here I am with a difficult to reproduce problem, no trouble codes, and 2 possibilities
1. Bad computer
2. Bad Ignition Control Module
Any suggestions on what to do?
Thought is to replace the ICM first because I assume it is cheaper and see if it fixes the problem.
Problem is that a search of the internet does not find anyone who sells this. Am I calling it by the wrong name or do they not sell them except at the dealer?
Help!
First, specifics - 2001 Isuzu Trooper, 3.5L engine.
Tried fuel, sea foam injector cleaner, fuel filter, air cleaner, and plugs. Sometimes I get code P300 (random misfires), sometimes no codes.
Returning home on a 500 mile drive today it got so bad that had a flashing Check Engine Light and had to pull over, but when I had mechanic check there were no stored codes.
Of course the problem only occurs when I am far from home and on the middle of the interstate.
In trouble shooting I tried putting cold water on the computer to see if it was a heat problem. It appeared to clear up the problem, at least for a little while.
I appears the problem takes longer to show up if I don't run the AC, making me believe it is heat related.
Except - got close to home and stopped in at the mechanics. I had cooled the computer enough to not have problems but when I tried to pull out the engine died. Desperate I pulled the plastic cover off the intake and cooled the ignition control module (ice chips). Worked like a charm.
So now here I am with a difficult to reproduce problem, no trouble codes, and 2 possibilities
1. Bad computer
2. Bad Ignition Control Module
Any suggestions on what to do?
Thought is to replace the ICM first because I assume it is cheaper and see if it fixes the problem.
Problem is that a search of the internet does not find anyone who sells this. Am I calling it by the wrong name or do they not sell them except at the dealer?
Help!
#4
I have replaced the ignition misfire sensor and have hopes that has fixed the problem.
Thread
Thread Starter
Forum
Replies
Last Post