Question about 1995 Oldsmobile Achieva

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Startes and runs back fires and dies when i put it in drive. thinking it might be a vaccum leak somewhere. what is a oil/air seperater?

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What size motor

Posted on May 17, 2011

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Posted on Jan 02, 2017

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1 Answer

Turns over then stalls


Check the mass airflow sensor. Possible dirt build up.
Check the rubber vacuum hoses for leaks.

Jun 06, 2017 | 2004 Ford Freestar

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Ive got an 1988 corvette sometimes it takes 3-7 tries to start whether cold or warm and other times it starts fine and has also stalled out while driving down road


Sounds like it could be a fuel pump or a fuel pressure regulator depending on the engine you have. Usually when it takes more than a second or two of turning it over before it will start means the fuel is going back down the line when not running. This can be because of a leak, not fuel leaking out but air leaking in, the fuel system or it can be as easy and a gas cap not properly venting/letting air into the tank as the tank empties. If it doesn"t let air in the tank, then the fuel that is being pumped out is creating a vaccum and sucking the fuel back into the tank when you shut the car off. Try opening the gas cap and letting some air get in just before you shut the car off. Then if it fires right up next time you know you need to replace the gas cap. If not check for vaccum leaks around the intake. Good luck.

Oct 03, 2011 | 1988 Chevrolet Corvette

1 Answer

1995 PONTIAC GRAND PRIX RUNS, SPUTTERS THEN STALLS WHILE IDLE AND when operating the vehicle


Same problem. 1995 Pontiac Grand Prix V6 3.1L no start problem Question The problem, my car runs great first start of the day but does have a miss fire, and I can drive for hours without a problem, but when I turn it off and try to start again 30 -60 minutes later it chuggles and dies and won't start for a least 3-5 hours later, then runs fine again. It trys to turn over and the battery does not drag, no signs of a bad alternator. Everything has power, all fuses are ok I checked them today. Second trip to repair shop resulted in no 3 fuel injector replaced with good results. Fuel pressure checked out ok, No smoking white or black, fuel filter replace and car had a tune up recently also the mass air flow was replaced supposedly, I am starting to wonder if these parts were actually new used or not put in at all but I am charged anyway this is fourth time to the repair shop however now the third time but this is at no charge by a church member's friend so I am inclined to take his advice and think it is the engine module. Three different auto repair garages tell me the following: either the cam shaft sensor, crank shaft sensor, or ignition module, causing no start or start and chuggle and die problem and bad & loose hoses sucking in air. (From my experience engines don't take in air they leak it out through vacuum leaks.) Apparently the last fix resulted in hand made manifold gaskets I did not know about and may also be causing contamination on my low coolant sensor cause it stays on, however back to the no start problem; my engine is getting to much air I am told, I am incline to think there is a vacuum hose leak somewhere instead. Was also told intake manifold gaskets may have a air leak, bad and loose hoses and possibly the sensor's I mentioned. So before I shove out money I don't have, I am doing some homework and found your site. What do you think is going on. Someone else said I do not have a crank shaft sensor. So I don't know whom to believe.

Aug 10, 2009 | 1995 Pontiac Grand Prix

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Car randomly dies at stop lights


map sensor and idle speed sensor check them

Jul 30, 2009 | 1999 Chevrolet Malibu

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A/C blower stops blowing air on acceleration


you have a vaccum leak some where on the engine start the car up open the hood a listen you may be able to the leak it will make a hissing noise

May 29, 2009 | 2000 Ford Taurus

1 Answer

94 lincoln town car back firing, and running bad.


check out these things EGR valve- Ignition timing- Vaccum leaks damaged valve springs or sticking valve- Vaccum leak at the intake manifold try this website to see if they have your car listed its www.alladatadiy.com if not check out your local library to get your hands on a Haynes repair manual for a Lincoln Town Car i hope i have been some help to you Michigan Man.

May 16, 2009 | 1994 Lincoln Town Car

2 Answers

Hard starts, drive when it wants and dies when it wants???


There's probably a group of solenoids around the engine bay somewhere, and these are part of it. I believe the speed control vacuum solenoid is for the cruise control system, and the vent solenoid I think would be for the evaporative emissions system-what keeps your gas vapors from the tank escaping to air- but traps them in a charcoal canister full of charcoal. The canister is probably under the hood too. Those solenoids act as on-off switches for controlling vacuum to other parts. You need to look at the wiring for them is what the code is saying.
The code may or may not be related to your hard starting or no start conditions. Sounds pretty bad. Check for a major air or vacuum leak around the vacuum lines and the intake manifold.
After that, probably back to basics-gas or spark may be giving you a problem. Monitor the fuel pressure, engine off and engine running. Check for a strong blue spark on all cylinders.

Mar 31, 2017 | 1988 Dodge Aries

1 Answer

Carbeurator? Low idle?


try and listen for a air noise even if you have to get someone to stay in the car to keep it running could be a vaccume leak.

Jul 05, 2008 | 1988 Subaru DL

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