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Old 07-03-2006, 12:06 PM
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Mike Murrell Mike Murrell is offline
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Join Date: Feb 2000
Posts: 2,580
Originally Posted by lintaro
I have a 1991 sel 420. would a bad C.P.S. even allow the car to start when hot? I have no problems when cold but when hot, It will start for a couple seconds and then stall. when cooled down I can start no problem. I'm trying to find out if it is the CPS or something totally different.
The CPS can cause this hot-start/hard-no start problem, but a faulty fuel pump will do the same. I just went thru this with a 126 gas car. After 15-20 min or miles of driving, car would start bucking and shutdown. After an hr. or so of cooling off, it would restart and drive for 4-5 miles, then do the same again. 15 yr. old fuel pump had given up the ghost. Just another possibility.
Mike Murrell
1991 300-SEL - Model 126
M103 - SOHC
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