Ask Your Car Question. Car Experts Answer You ASAP.

(Not a Car Question?)

My 94 Buick LeSabre stalls out irregularly. Sometimes it ...
Sent to Car Experts July 30 09:35 AM

My 94 Buick LeSabre stalls out irregularly. Sometimes it stalls when the AC is on and I am taking off from a stop light, it will stutter to 45-55 MPH then the engine dies. Sometimes it stalls without the AC on when making a sharp turn at low speeds. The check engine light is not on for the first time in two years but the ABS service light is on and it gives me no trouble codes on a scan tool, can any one help?

 

Optional Information:
1994 Buick LeSabre 3500

Already Tried:
New TPS, Fuel Filter, Ignition module, crankshaft position sensor, tune-up

Customer (name blocked for privacy)
Status:  Closed   Value: $10
Answer
July 30 9:55 AM (20 minutes later)
         
REPLIEDCheck Mark
I would check the fuel pressure with a gauge and see if it's in the 40-45psi range during the failure.If it is the pump is okay.If not the pump is bad.If that checks good you can try cleaning the mass air flow sensor with some carb cleaner inside or replacing it.

Master ASE Certified.L1 Advanced Engine Performance Certified.Pa Emission Repair Technician.Just Answer Car Category Mentor.
PictureDavo -- Master technician -- 99% Positive Feedback on 1919 Car Accepts
ASE Master Technician/Advanced Automotive Diagnostic Technician
Reply
July 31 9:54 PM (1 day and 11 hours later)
         
Reply to Davo's Post: I'm not sure I can check the fuel pressure when the problem happens, doesn't the car have to be running to check it? When it dies, it starts back up immediately and runs fine until it decides to die again. It isn't an all the time problem. I will accept your answer if you can tell me when to check the pressure. I cleaned the mass air flow sensor and butterfly valve as well as evry thing else in the area when I replaced the throttle position sensor. i did notice that the connection to the TPS was broken but it has not moved since I did the work. Wouldn't a faulty sensor send a trouble code?
Customer (name blocked for privacy)
Think you can answer this question?
Login or Become an Expert

Related Answers

 

DISCLAIMER: You acknowledge that any information you may obtain from individuals you contact through use of the Just Answer service comes from those individuals, not from Just Answer!, and that Just Answer is not in any way responsible for any of the information these third parties may supply. The site and services are provided "as is" with no warranty and no representations are made regarding the qualification of an Expert. Responses and comments on Just Answer! are for general information and are not intended to substitute for informed professional advice (such as medical, legal, investment or accounting) and do not establish a professional-client relationship. Just Answer! is not intended or designed to address EMERGENCY QUESTIONS which should be directed immediately by telephone or in-person to qualified professionals. Please carefully read the Terms of Service.

Just Answer! > Car Repair