Hard start after hard driving
Thread Starter
Newbie
Joined: Nov 2016
Posts: 7
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1998 ML320, 2006 Gto, 1990 Comanche
Hard start after hard driving
When I take my ml320 for a drive and keep the rpms under 2500 for a 20-30 minute drive my ml starts right up after sitting for a day, however when I drive my car and keep the rpm between 3000-4000 for 20-30 minutes and try to start the car after a day the motor takes 4-5 seconds to crank. Does anyone have any ideas of what the issue is?
MBWorld Fanatic!
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
The problem is fuel pressure leak down. You will need a fuel pressure gauge. With the gauge attached, run the eng. for a minute and turn off eng.
Then monitor the gauge following the PDF instructions.
Then monitor the gauge following the PDF instructions.
