Hard starting when engine and ambient temperature is hot.

[Ed Kellock]

Fuel pressure check valve.  In the gas tank on top of the fuel pump.  I went in with a new one in hand and found that it was merely loose.  I replaced it anyway.

Ed

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From: George Harris <harchris at smokesignal.net>
Date: 2004/06/15 Tue PM 07:39:55 MDT
CC: quattro at audifans.com
Subject: Hard starting when engine and ambient temperature is hot.

The patient is an '89 Audi 200 automatic non Quattro.

I have been unable to understand accessing the archives, so I appeal to 
the listers:

The patient runs strongly and smoothly once it is started. When cold it 
starts easily. It starts easily with a few seconds of turning over if 
started immediately after being turned off.

The problem occurs when the vehicle sits for up to an hour while it is 
hot outside. It has to turn over for a longer period of time as the wait 
lengthens.

We have a second Audi and many parts have been switched with no 
solution, and all tune up parts have been replaced: spark plugs, 
hi-tension leads, distributor cap, rotor.

I would appreciate any help in diagnosing this problem.

Cheers
George



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