CAR STARTS EASY, BUT WON'T HOLD AN IDLE & DIES OUT

southernpride69
55

Asked by southernpride69 Oct 31, 2012 at 01:05 PM about the 1992 Oldsmobile Eighty-Eight Royale 4 Dr STD Sedan

Question type: Maintenance & Repair

CAR HAS BEEN SITTING FOR A FEW YEARS. THE IN TANK FUEL PUMP & FILTER HAS BEEN REPLACED. THE FUEL INJECTORS WERE TAKEN OUT & CLEANED. NOW THE CAR STARTS EASILY, BUT WON'T IDLE. CAR ACCELERATES SMOOTHLY. THANKS FOR ANY HELP !  1986 OLDS. DELTA 88 ROYALE  3.8 V/8

8 Answers

John Saffrahn
15,375

Has the gas been replaced?

3 out of 3 people think this is helpful.
southernpride69
55

YES, TANK WAS EMPTIED & FRESH GAS PUT IN. WHEN THE NEW TANK PUMP WAS INSTALLED W/ NEW PUMP STRAINER & FILTER.

1 out of 1 people think this is helpful.
John Saffrahn
15,375

Check the idle air control. Looks similar to a C battery and its black on the throttle body. Pull it off clean it really really good with carburetor, or brake cleaner. It may be gummed up or stuck shut in its closed loop mode and that would choke the engine with gas.

3 out of 3 people think this is helpful.
southernpride69
55

THE IAC HAD HI-RESISTANCE. I REPLACED IAC & PUT A BOTTLE OF LUCAS INJECTOR CLEANER IN THE TANK. I STILL HAVE THE PROBLEM OF DIEING , NOT HOLDING AN IDLE ! WHAT ELSE CAN I CHECK ?

John Saffrahn
15,375

Have you checked for vacuum leaks? Get the gauge hooked up and get it to run at the lowest rpm you can. Come back with the rpm and vacuum it pulled

1 out of 1 people think this is helpful.
Best Answer
southernpride69
55

I FOUND A MAJOR VACUUM LEAK, SOLVED THAT & IT'S IDLE IS MUCH BETTER. NOW I'M DEALING WITH SUM MINOR ELECT. PROBLEMS ! THANKS

3 out of 3 people think this is helpful.
John Saffrahn
15,375

Nice where was it leaking and what are the electrical problems?

1 out of 1 people think this is helpful.
southernpride69
55

VACUUM LEAK WAS MAIN LINE GOIN BACK TO BRAKE BOOSTER. NO TAILLIGHTS, BUT HAVE BRAKE LIGHTS. NO FRONT TURN SIGNALS & NO DASH LIGHTS. COOLING FANS DON'T WORK .

1 out of 1 people think this is helpful.

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