1990 Pontiac Firebird no power

Tiny
84CORJOB
  • MEMBER
  • 1990 PONTIAC FIREBIRD
  • V8
  • 2WD
  • AUTOMATIC
  • 80,000 MILES
I have a 1990 firebird that when you apply the gas it hessitates and backfires. Not sure where to go from here? Help
Saturday, December 27th, 2008 AT 9:01 AM

1 Reply

Tiny
KEVIN12881
  • MEMBER
  • 336 POSTS
LEngine lacks power. See one of the following: 1.) Incorrect ignition timing. 2) Fuel filter clogged and/of impurities in fuel 3) Faulty or incorrect gapped spark plugs. 4) Air filter dirty. 5) Spark timing control system not working properly. 6) Faulty ignition coil(s) 7) Brakes binding. 8) Auto Trans fluid not correct 9) faulty distributor cap or wires 10) EGR system not functioning properly. 11) Use of sub standard fuel. 12) Low or uneven cylinder compression pressures 13) Air vacuum leak at intake manifold or plenum
backfire. EGR system, ignition timing, vacuum leak, intake air leak, damaged valve springs or sticky valves.
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Saturday, January 17th, 2009 AT 9:56 PM

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