That's a similar problem I was originally chasing. Turns out my battery was sliding into the computer wiring harness disrupting sensor / injector input and output signals. I cured my problem by placing a 1" spacer on rear battery clamp pushing the battery forward, and this cured my problem. Also may or may not relate, my vacuum canister was completely full of crud (replaced) and the line leading to the carb was cracked (vacuum problem). Also my jeep would lurch/buck and such after a 20 min cool down for a couple of seconds then stop. I traced this to a bad o2 sensor in exhaust manifold.
Its just a guess. sure. heard this years ago , before 1988?
sure.
but is not now. the tank has the pump and runs up to 60psi pressure
preventing vapor lock.
why not post the symptoms and let skilled diagnosis win?
my wild guess.
engine stalls?
or engine bogs (lost power up hills)
what?
ever get a 60k mile tuneup? eva?
Vapor lock is something for carberated cars. Modern fuel injected cars have fuel pump in the tank and the whole fuel system is pressurized.
Why do you think you have vapor lock?
SOURCE: fix vapor lock
If an EFI model the run the fault codes and fix the faulty valves and solenoids . If a carby model the re- route the fuel lines away from any heat source. Put a fibre gasket and heat block ( bakelite material that does not conduct heat up from the manifold) under the carby to manifold and if all else fails put a small filter in the line before the carby
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