Quote:
Originally Posted by peid  Vehicle ran fine all day Thursday May 7, Friday May 8 and over half the day Saturday May 9. Saturday evening, stalled and left us on the side of the road for 15-20 minutes.
Dropped vehicle off at dealership again (5th time) yesterday, Monday May 12. Just got a call from them today, Tuesday. They have finally been able to reproduce the problem. When problem occurred, they could hit the underside of the fuel tank and the pump would kick back in, then go back out after a short while. Also, there was a electrical connector related to the fuel pump that they said was 90% melted and shorting out. They replaced the connector and pump and want me to drive it for a week or two before we "settle-up!"
Fingers crossed, going to get it at noon today!
Running total of replaced parts and procedures completed due to this issue:
*CPS
*Fuel Filter
*MAF
*Reflash CPU
*Fuel Pump
*Melted Electrical Connector |
Your Tech has a strange understanding of diagnostics, I posted way back to check the fuel pump. With diagnostic codes, its not only what you see its what you dont see.
The fault you were experiencing could have been the CPS that much I would agree. But most of the fault codes were pointing to a fuel problem and a faulty fuel pump/fuel pump wiring connector would not give a code. And thats exactly why I said they had not done a correct fuel line pressure test whilst on road test.
I only hope they drained the fuel tank and cleaned the tank and tank filter, its standard practice with Benz. I mean the tank filter and not the fuel filter. If they havent done this then the problem may and I say may occur again.
Thanks for posting the result
PS, if the car runs OK for the next week or so then ask for the old MAF and CPS to be put back on, why pay for something you did not need to start with and a cut in the labour cost of replacing items that did not fix the problem.