1990 Buick Century Repair Question
Stalling/Hard start problems for '90 Century
The engine starts and runs fine when it is cold. ANY advice would be appreciated. We have a very limited income and simply cannot afford to take the car to a shop and let them charge us for trial and error diagnostics.
Thank you for your time!
p.s. Upon recieving an answer I wiill make an additional donation as thanks !
To start I would check the fuel pressure regulator. It is on the fuel rail and has a small vacuum line from it to the intake manifold.Remove the line to see if there is raw fuel in the vacuum line.If there is then it needs a new fuel pressure regulator. Also look at the harmonic balancer on the front of the engine while running.See if the balancer wobbles instead of turning straight.That might be a crank angle reading problem(the noise at the front of the engine)
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