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hi to all. car starting instantly when cold. also fine when hot. but if left unstarted for 15 plus minutes when hot -then the problem occurs. will not start except after 5 to 10 seconds turn over. sometimes, for no apparent reason, its ok -but mostly the problem is there. car cools right down and hey presto its back to normal.

have checked :

plugs

cleaned ptu

checked all contacts that i can get to

no fuel leaks that i can find / smell

temp sender

 

 

not the end of the world - as oil pressure has a chance of building before ignition- but would be nice to perhaps deal with once and for all.

any advice would be great. regards cris

Featured Replies

If you have a series I ptu then that would be my guess. Had the same symptoms on my 300 last year, got a series II ptu and no problems since.

Al.

Faulty PTU, either get another series 1 to try, or go for a series 2, should solve your problem. As above lol

Classic leaking fuel damper causing flooding, check the damper vacuum hose on the balancer bar on the drivers side, if its slightly wet with fuel when pulled off after been running then that`s the cause, also check the temp sensor at the front pipes.

 

Jeff TT

  • 2 weeks later...
  • 3 weeks later...
  • Author

have since then done away with the prvr system - seems to have totally cured the starting problem .

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