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1985 5L Trans Am wont turn over, idles rough in gear and dies

Whent the TA starts, it runs alright, but when I stop at a light or sign, the engine idles really low in drive, but dies in reverse. Also, after replacing the battery cable terminal leads, it ran fine, but now it wont turn over, it is getting fuel and air, but no spark, and the terminals are tight, so the battery is giving voltage

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: 1999 pontiac grand prix . will not run

If wiggling the wires cured the code, then one of the wires is broken inside the insulation. Pull on each wire one at a time. look for the colored insulation to stretch, this will be the broken wire. For the other car that wont rev up, this is a common when the catalytic concverter is plugged up. This will also cause MAF codes, and in turn, TRAC OFF light.
See http://www.greatautohelp.com

Posted on Oct 17, 2008

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SOURCE: 85 trans am 305 mpfi rough idle at start

check your Temp sensor for the ecu. could be out of spec at lower temps but not enough to send a code "You know -40 is possible and won't send a code"

Posted on Nov 12, 2008

  • 106 Answers

SOURCE: 2001 Pontiac Grand Am Rough Idle In Drive Only

has it had a tune up?

Posted on Mar 24, 2009

ourhowse
  • 2007 Answers

SOURCE: car idles rough and stalls

Have you ever changed the fuel filter? If it's not that, and it's not a vacuum leak, it is probably your idle air control valve.

Posted on May 08, 2009

  • 117 Answers

SOURCE: My servie engine light is on with the code PO108

the problem is youer map sensor or wirers to sensor
code p0108.is Manifold Absolute Pressure/Barometric Pressure Circuit High Input

Posted on Nov 12, 2009

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