1989 Suburban; Trouble code 42 - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 10-24-2004, 03:55 PM
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1989 Suburban; Trouble code 42

My suburban started to cut out, then one day wouldn’t start at all. I had it towed to the dealership (two separate dealerships, two separate times) which turned out to be a waste of my time and money. The first time the truck wouldn’t start, then once it got to the dealer, the tow truck driver hopped in and fired it up. Anyway they said they could not help me, I asked if they had pulled any trouble codes, b/c the check engine light had flashed on. They told me that it was a fuel problem, which I thought was odd. I went out, bought a trouble code reader, and sure enough trouble code 42 was waiting there for me. It is a short in the EST bypass. Has anyone else had this problem? Is there an easier way than opening the wiring harness to find the short? or is there an easy way to bypass it and replace the wire without tearing apart the wiring harness?
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