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Old 06-23-2010, 06:30 AM
rayhennig rayhennig is offline
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Join Date: May 2009
Posts: 338
Yes, I agree ...

Quote:
Originally Posted by samiam44 View Post
what's the correlation-

Fuel gets hot it vaporizes.. then it runs like crap. If there is insuffiecent fuel pressure in the system, it has mixed liquid and vapor.

Honestly, it sounds like you need to find a good shop. Tools and time are going to cost you much more than the repair.


Michael
But fuel vaporisation is guarded against by an accumulator that maintains the pressure. I also believe that (in my case) the air intake temperature sensor plays a part in telling the system that very hot (and thus less dense) air is entering.

Also, as you say, ignition issues play a part. I have had distributor cap, rotor and spark plugs, the replacement of which has dramatically improved hot performance. My cheap (Bremi) replacement cap failed hot after less than 2 years and the 19 year old original went back in and all's well for the moment. A new MB one will be installed soon.

Certainly for ignition parts (that get VERY hot in my car), I say, "Buy genuine MB ONLY!" Ask them for a discount, I got 15% with little effort.

Bonne chance.

RayH
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