(Long) Hot Starts....argh....

[Huw Powell]

Allen Swett wrote:
> 
> Happy New Years,
> 
> Had a hot start situation just before Christmas on my 89 200q.  Thought I
> had remedied the problem by replacing a bad thermo switch for the injector
> cooling fan,
> no problems for a week, now I have experienced it once more, now of course
> I am about to sell the car.....So, once more I beg the wisdom of the list
> in helping me solve this dilemma....I will be spending quality time with
> Bentley in hand trying my best to diagnose all critical CIS
> components.....Situation is such.  After car is fully warmed, and left
> 15-30 minutes, cranking cranking cranking, nothing...then it cools off,
> starts right up.....Injectors are new, all tune up items are new, car get's
> 20+ mpg around town..... Vapor lock?  I would appreciate anyones insight on
> their experieince with vapor lock or any long cranking issues...

1. I agree with the potential for it being the fuel pump check valve
2. I reduced to unnoticeable a similar intermittent hot start condition
in my coupe with a new starter - the old one was sucking down the
available voltage too far for adequate fuel pump delivery or ECU
functioning... or both... new starter spun engine twice as fast!

-- 
Huw Powell

http://www.humanspeakers.com

http://www.humanthoughts.org