Re: 5.3 litre chev V8

Posted by Allan in NE on October 09, 2004 at 10:13:31 from (148.78.243.25):

In Reply to: Re: 5.3 litre chev V8 posted by Allan in NE on October 09, 2004 at 09:38:35:

And, since I'm feelin' "Yappy" again this morning as per usual, :>)

As you undoubtedly know because you are in the business, those trouble codes are merely a diagnostic tool and are not necessarily a 'chiseled in stone' indicator of the actual problem.

A guy has to have a very through understanding of the systems involved and how they operate to properly find the problem. That trouble code usually will get you into the correct neighborhood of distress, but you have to use your head and know the lay of the land to properly diagnose these kinds of headaches.

Further, and if my old pee-brain is remembering right, it takes something on the order of 50 key starts for any given code to ‘naturally’ clear itself from memory after any one problem is resolved.

What this means, is that if the owner has been in the habit of taking his rig down to “Barney’s Bakery and part time Bitchin’ Truck Repair”, and ol’ Barn’ hasn’t got sense enough to scratch his pet goat’s rear, let alone, clear the ECM’s memory of past trouble codes after all his attempts at tryin’ to fix this guy, the situation could occur whereby that memory is loaded with a string of old codes, which are totally worthless and are just complicating the matter of the current difficulty.

Yeah, I really miss turnin’ wrenches, but just not all that much. :>)

Allan

Follow Ups:

• Re: 5.3 litre chev V8 GM Tech 18:39:34 10/09/04 (2)
  • Re: 5.3 litre chev V8 Allan in NE 04:24:44 10/10/04 (1)
    • Re: 5.3 litre chev V8 GM Tech 17:11:59 10/10/04 (0)

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