Question about 2001 Mercedes-Benz C-Class
Starter turns,but does not start. I think there is no fuel going to the engine.I checked the fuel pump relay,it seems to click on when ignition is switched on.How would i know if its the MAS (mas air sensor) or CPS(crank position sensor) or fuel pump if it is not starting. Pls help .
If you hear a slight hum in the gas tank when you first turn on the key for 2 seconds the pump is working. Have the fuel pressure checked by a mechanic, it should be about 60 psi. It's usually located just before the injectors. Also have each injector wire pulse checked (light test) to see if there is enough spark to them. Have the ICM Ignition Control Module unit located under the rotor checked for enough spark also. My Trans Am had the same problem, turned out to be a shorted out injector causing it not to fire. If you can get to the wires to the injectors, pull one at a time while cranking to see if it starts or not. If you find that one that's faulty and unplugged the engine will start. That would be one problem. Also have the cars CPU checked to make sure it is not faulty also.
Posted on Sep 13, 2008
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Feb 23, 2014 | Cars & Trucks
Oct 30, 2013 | Mercury Mystique Cars & Trucks
Jul 27, 2012 | 2002 Oldsmobile Intrigue
May 09, 2012 | 1985 Oldsmobile Cutlass Supreme
Oct 19, 2009 | 1996 GMC Safari
Jul 24, 2009 | 2003 Hyundai Santa Fe
Jul 02, 2009 | 1998 Dodge Intrepid
Jan 25, 2009 | 1998 Honda Odyssey
May 21, 2016 | 2001 Mercedes-Benz C-Class
335 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: