help please

Asked by jrthekidd Apr 24, 2015 at 05:51 PM about the 1998 Chevrolet C/K 1500

Question type: Maintenance & Repair

I have a 1998 chevy 1500 series.5.7 vortex engine.runs very bad,no power till outside
temp reachs about 70 degrees ...can anyone please give me some help on this>? please

4 Answers

50,595

You just may have a hairline crack on one of your computer modules, and when it heats up, it expands and the connection is rejoined. That is one possibility. If you can when the temp is below 70 and it is causing problems, have someone put a code reader on it and see if all systems are working. Once the engine warms up, the under hood temp shuld be above 70. Does that help?

I have a 92 does the same thing, it did it for 2:years now this year it's cooled off and it stopped

Ambient air temp sensor in the air intake housing ,temp sensor by thermostat housing check the two large grounds one on back of rt head the other frnt of engine left side looking at it ,its just below the mount thats bolted to the head also when you change any thing b sure the batt is disconnected and or reset the codes every time you change something .

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