Ask Your Car Question. Car Experts Answer You ASAP.

(Not a Car Question?)

My 1990 Buick Lesabre refuses to start right after a ...
Sent to Car Experts August 02 08:25 PM

My 1990 Buick Lesabre refuses to start right after a long drive, but after sitting for 30 or 40 minutes it starts right up again. what could be the problem?

 

Optional Information:
1990 Buick lesabre 3.8

Already Tried:
replacing fuel filter, checking fuel lines, fuel injection cleaning,

Customer (name blocked for privacy)
Status:  Closed   Value: $20
Answer
August 2 8:26 PM (1 minute and 3 seconds later)
         
REPLIEDCheck Mark
Greetings!
I would check the fuel pressure regulator. It is round, about a quater size and has a vaccum line going to it. If the regulator is leaking gas than it can cause this problem. Pull off the vaccum line that goes to the regulator. Be absolutly sure there is no gas in the vaccum line. If there is, the diaphram has ruptered and there is gas entering the engine that is not accounted for and the regulator will need to be replaced!
Picture
AMEDEE -- ASE MASTER TECH -- 98% Positive Feedback on 1130 Car Accepts
ADVANCED LEVEL SPECIALIST
Reply
August 2 8:34 PM (8 minutes and 11 seconds later)
         
Reply to amedee's Post: where would the fuel pressure regulator be located?
Customer (name blocked for privacy)
Answer
August 2 8:38 PM (3 minutes and 48 seconds later)
         
REPLIEDCheck Mark
It will be located on the top of the motor attached to the fuel rail. There willl be two gas lines going to and coming from the injectors. It is right there u cant miss it!
Picture
AMEDEE -- ASE MASTER TECH -- 98% Positive Feedback on 1130 Car Accepts
ADVANCED LEVEL SPECIALIST
Reply
August 2 8:45 PM (7 minutes and 22 seconds later)
         
Reply to amedee's Post: there is not any gas in the vacuum line. what now?
Customer (name blocked for privacy)
Answer
August 2 8:47 PM (1 minute and 36 seconds later)
         
REPLIEDCheck Mark
Try turning the key on to prime the pump and watch for fuel.
Picture
AMEDEE -- ASE MASTER TECH -- 98% Positive Feedback on 1130 Car Accepts
ADVANCED LEVEL SPECIALIST
Reply
August 2 8:53 PM (6 minutes and 25 seconds later)
         
Reply to amedee's Post: I had one person priming several times and I didn't see any gas from the disconnected vacuum line.
Customer (name blocked for privacy)
Answer
August 2 8:54 PM (1 minute and 9 seconds later)
         
REPLIEDCheck Mark
I would rec to check fuel pressure next. Fuel injected cars are very fuel pressure sensitive. Fuel pressure is very important and must be within specifications! U can get a fuel pressure gauge at a local auto parts store for cheap. Good luck let me know.
Picture
AMEDEE -- ASE MASTER TECH -- 98% Positive Feedback on 1130 Car Accepts
ADVANCED LEVEL SPECIALIST
Reply
August 2 8:58 PM (3 minutes and 13 seconds later)
         
Reply to amedee's Post: could it be the fuel pump? recently before this problem,, if I didn,t warm it up or drove it cold it would hesitae or jerk when initially accelerating from a stop sign or light.
Customer (name blocked for privacy)
Answer
August 2 9:02 PM (3 minutes and 52 seconds later)
         
THIS ANSWER IS LOCKED!
You can view this answer by clicking here to Register or Login and paying $3.
Picture
AMEDEE -- ASE MASTER TECH -- 98% Positive Feedback on 1130 Car Accepts
ADVANCED LEVEL SPECIALIST
Answer
August 2 9:12 PM (10 minutes and 8 seconds later)
         
THIS ANSWER IS LOCKED!
You can view this answer by clicking here to Register or Login and paying $3.
Picture
AMEDEE -- ASE MASTER TECH -- 98% Positive Feedback on 1130 Car Accepts
ADVANCED LEVEL SPECIALIST
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