EA CFI starting problem
Maybe some of you guys can help with a starting problem with my son’s EA sedan.
It’s a CFI.. 4 speed auto and has a starting problem when it’s warm.
The car starts ok when cold, idles normally and runs fine.. no problems at all.
It’ll also restart ok and run fine when it’s hot, as long as it’s less than about half an hour before restarting it.
It’ll run all day once it’s going, power and fuel economy are both good (both better than my EA) and the temp gauge runs mid normal on the gauge (around ‘R’ to ‘M’) or slightly lower in wet cold weather.
The car has done high kilometers (close to 400,000 k’s) but has been serviced regularly in the last year or so since being bought.
The engine has only very minor rattles, oil useage is minimal, cooling system has been overhauled; distributor, coil, leads, plugs etc were all replaced recently due to a failed ignition module.
The problem, which has occurred recently, is restarting from about 30 minutes to an hour from switching it off once the engine has warmed up.
Restarting any time up to about 30 minutes is ok, but from 30 minutes up to an hour or so (as the motor is cooling down) it just won’t start again.
The starter motor turns the motor over ok, lights show normally etc, it does everything correctly except restart.
Leave it for another half an hour (after an hour or so) and it starts and runs ok as it normally does for a cold start. Open the bonnet and just leave it open and the car will start sooner than with it closed.
It seems like a heat soak thing, a vapour lock, lack of fuel, or something temperature related, or maybe a sensor, but what?
Any ideas or advise about a systematic approach to finding the problem?
...Prove the fault first .. Guess later ...
...Member of the ATPS and the NFFS...