Question about 1985 Pontiac Firebird

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85 pontiac firebird wont stay running. replaced ignition modul and rotor in distributor. car runs, dies, starts and dies after a few feet. will keep starting.

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Sounds like a weak coil pack

Posted on May 02, 2010

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1989 chevy 2500. started it up in driveway it died wouldnt start. changed ignition module drove it to town died wouldnt start again. got a diognostic tester which read throttle positioning sensor changed...


I WOULD CHECK IGNITION FUSE TO SEE IF POWER GOING TO COILS AND IGNITION MODULE. REPLACE DISTRIBUTOR CAP AND ROTOR.HAVE IGNITION TIMING CHECK.DISTRIBUTOR CAN SLOWLY WORK A LOOSE JUST A LITTLE TO THROW OFF IGNITION TIMING SO PLUGS WONT GET NO SPARK.

Jan 04, 2011 | Chevrolet 2500 Cars & Trucks

1 Answer

It starts and runs for a while, and then randomly dies and wont start, but starts again after sitting a few hours


That is the classic symptom of an electronic component overheating, and it could be a problem with the fuel pump, the ignition module inside of the distributor could be faulty, or the ECM (Engine Control Module) could be faulty, and the ECM's that were manufactured back then were prone to faults, and that is also why they can be purchased for only around $70.00 at most auto part stores.

The ignition module located inside of the distributor is what generates the signal that the ECM (Engine Control Module) uses to time and fire the fuel injectors, as well as the signal to run the fuel pump and the dwell signal timing to fire the ignition coil. A faulty ignition module can cause any one of these systems to malfunction.

That does sound like a malfunction with the ignition module inside of the distributor, and you can remove the ignition module and have it tested for free at most auto part stores.

If you do purchase a new ignition module be sure that it does come with a silicone grease or a die-electric compound because it is a heat sink and the ignition module will burn up without it.

To install the new ignition module first clean out the mounting surface inside of the distributor. Then completely coat the metal contact surface under the ignition module with a thick coat the silicone grease or die-electric compound and do not leave any of the metal contact surface of the ignition module un-coated with the silicone grease or die-electric compound, and be very careful not to over-tighten the ignition module or it will be damaged.

Jun 19, 2010 | 1984 Pontiac Fiero

1 Answer

I have a 1980 Firebird with the 3.8 V6. This car


check to make sure you have fire and fuel and then compression you have to have all three for the motor to run

Feb 16, 2010 | 1979 Pontiac Firebird

1 Answer

No start! Help!


the throttle position sensor can cause it to do that

Sep 20, 2009 | 1990 Pontiac Firebird

1 Answer

1998 3800 v6 firebird... wont run right after starting


Possibly a weak fuel pump, idle air control valve, vacuum leaks, or loose or damaged wiring in the ignition system. Check for vacuum leaks first. That's the only one that won't cost anything. Make sure all intake bolts are tight, and all hoses are connected properly and in good condition.

Jul 20, 2009 | 1999 Pontiac Firebird

1 Answer

85 vette starts but will not stay running


there is a sensor on the throttle body it' controls the idel of the vehicle it's called a tps and has a electrical lead to it this should be replaced it will be positioned right behind the butterflyplate of the throttle body

Apr 26, 2009 | 1985 Chevrolet Corvette

1 Answer

1987 pontiac firebird trans am


I HAD SAME PROBLEM MY 87BIRD I HAD TO REMOVE THE FUELTANK AND REMOVE THE SOCKSCREEN OFF THE ELEC.FUELPUMP THE OTHER 87BIRD I HAD TO EXTEND THE HOSE TO BOTTOM OF TANK.ONE I CHANGED FROM FUEL-INJECTION TO 4-BB Q-JET ONE I LEFT ELEC.PUMP IN JUST REMOVED SOCK STILL WILL WORK.MY PROBLEM WAS SAME IT WOULD START AND IDLE FINE,IT WAS WHEN I TOOK IT DOWN THE ROAD IT WOULD DIE ABOUT A BLOCK AWAY.BELIEVE ME I WENT THRU EVERYTHING ALSO.HOPE TO OF HELPED OUT

Jun 07, 2008 | 1987 Pontiac Firebird

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