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On my 1998 GMC Savana, when I press on the gas, the check guages sign flashes, the needle on my thermostat shoots up and my other guages go up and down. When I take my foot off the gas, all goes back to normal. Had the cables on the battery checked, and they are ok..Can you please advise? Thank you so very much!

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  • Cars & Trucks Master
  • 21,873 Answers

Sounds like a short somewhere in the wiring harness going to the engine block or under the dash.
Does the problem happen if the engine is not running and you push on the gas pedal?

Posted on May 03, 2013

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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emissionwiz
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SOURCE: My check guages light come on and off and the oil

have your oil pressure tested with a mechanical test guage as soon as possiable, if it is ok then replace oil pressure guage unit

Posted on Mar 03, 2009

  • 221 Answers

SOURCE: gmc savana van will stop running while driving or start sputterin

It could be a clogged fuel filter or a bad fuel pump. Also try replacing the spark plugs and spark plug wires and having the timing checked. Good luck.

Posted on Mar 11, 2009

  • 28 Answers

SOURCE: temp guage goes up and down after driving awhile

replace Cooling fan switch

Posted on May 04, 2009

  • 293 Answers

SOURCE: 2007 GMC Envoy - Gas gauge showing empty and check engine light

This is a safety feature that the vehicle brings. You need to reset the E.C.U on dealership or it will keep doing it to you. It was probably caused by one single time that you did not closed the fuel cap correctly. Good luck

Posted on Dec 29, 2009

oberkiuler
  • 51 Answers

SOURCE: I think I have an alternator problem? The charge

Hello
The normal charge of alternator on idling is about 13 to 14 volts. 12 is acceptable but keep in mind it will need attention soon. The needle fluctuates due to the revs of the alternator - there is nothing to worry about. Just look that the charge is always above 12V on idle.

Posted on Jul 14, 2011

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