Question about 1989 Chevrolet Suburban

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1989 gmc suburban engine problems

I recently started having problems with starting up my truck it kinda drags starting and sometimes when i come to a complete stop and try to push the pedal fast it will shut off but will start back up i have changed the timing chain,feul pump&filter,ignition module,plugs&wires,both battery cables,starter,egr valve,o2 sensor,gasket under the tbi unit it seems like i have more problems when it is warm than cold i can start it easier if i dont hold it over all the way over or bump it two or three times it will start once its sart it runs like new money and gets all its power but if i turn on the ac i start having problems i think it is wiring issue because a while back my battery positive cable melted a little at the battery then my starter started getting hot and went out then my alternator burned up bushing and guts came out then the other day my headlights the low beams wouldnt come on but one of them had a soft blink to it but the other didnt my tail iights and dash lights had a slight blink to them i looked around and saw that both the prungs to the low beams had melted a little but when i touched the high beam prungs on the low beams they came on i also moved my main ground from the intake to the engine block i dont know if its a sensor or wiring or feul related i also have an alarm and auto start that still works fine im tired of hearing it could be this or that i realy want to keep it because i have put a lot of time and money into it over the years and next year it will be twenty years old a classic in my book please help!!!

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I'm not an expert by any means,but I hear nothing but bad things about those auto starts. Several mechanic friends of mine refuse to put them in. The damage may be done ,but you might try taking out the auto start. i know it's a real nice feature,but that's quite a price to pay for it.

Posted on Oct 25, 2008


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