stalling
Thread Starter
Newbie
Joined: Sep 2004
Posts: 3
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From: Boston
c220 z3 x-type yukon xl
stalling
Help!!!!!!!!!!!!!!!!!!!!! 
This is my first post. I have a 94 c220 automatic with 110k miles on it. My family has owned the car since new and I have owned it for 5 years, no problems until now. All service has been done on regular schedules. The car runs, the idle drops to 500 rpm in drive and then dies. If you catch it before it dies and floor it, it will continue to run, but it bucks and surges and has no power. If it stalls I have to wait between 10-20 minutes for it to cool before it will start, and run fine, maybe 1 mile or 800 miles maybe one day or 3 weeks. I changed the OVP, fuel pump relay, cam sensor, plugs, wires, fuel filter. I scanned it and no codes are present. I even had it die while the scanner was plugged in and no codes or faults were found. Please help!!!! The dealer wants to change all 3 fuel pumps, yes there are 3 pumps. I think it may be the crank sensor. Please help !!!!!
This is my first post. I have a 94 c220 automatic with 110k miles on it. My family has owned the car since new and I have owned it for 5 years, no problems until now. All service has been done on regular schedules. The car runs, the idle drops to 500 rpm in drive and then dies. If you catch it before it dies and floor it, it will continue to run, but it bucks and surges and has no power. If it stalls I have to wait between 10-20 minutes for it to cool before it will start, and run fine, maybe 1 mile or 800 miles maybe one day or 3 weeks. I changed the OVP, fuel pump relay, cam sensor, plugs, wires, fuel filter. I scanned it and no codes are present. I even had it die while the scanner was plugged in and no codes or faults were found. Please help!!!! The dealer wants to change all 3 fuel pumps, yes there are 3 pumps. I think it may be the crank sensor. Please help !!!!!
Member
Joined: Jul 2004
Posts: 123
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From: Boston, MA
2001 BMW M5
Hmm...not sure on this, but you may have a vaccum leak in one of your hoses. The outside air is being sucked in through a cracked hose causing different readings for the computer to adjust to resulting in a bucking/stalling syndrome. The rubber houses used in the system tend to get brittle with old age (especially in Boston) and crakc and break quite easily. Try to trace some of the lines to see if you can see any cracks in them. Good luck and please let us know how oyu make out.
Thread Starter
Newbie
Joined: Sep 2004
Posts: 3
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From: Boston
c220 z3 x-type yukon xl
The main computer ecm needed to be replaced. The cost including diagnostics and parts is $1400.00 Not to bad considering in 10 years this is the only major repair.
The computer would shut down the fuel system, thus causing the stalling.
The dealer warrenties this will fix the issue or refund and return my old parts.
MBWorld Fanatic!
Joined: Nov 2001
Posts: 5,854
Likes: 197
From: Huntington Beach, Ca.
'17 Jaguar XF
No offense to the dealer but.....
at $1400 I'd get a second opinion from an independent. First they wanted to replace all the fuel pumps, now the ecm. Sounds like they're guessing and just going for the max $ guess.
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It's possible it's your ECM, given what you've described. Agreeing with mleskovar, I would highly recommend you take it to another person to have that verified however. It wouldn't be the first time a dealership went in blindly conducting expensive repairs.
If it's going to cost you $1400, I would start to consider whether or not it's worth it. Granted, it's not rendering your car totalled, but it is a very costly repair after you've already dropped a significant amount of loot into the car. I understand the car has been with your family for a long time but maybe it's time to move on to a new one? That $1400 could be a decent down-payment on a new C230.
Anyhow, definitely have someone else (outside the dealership that does your maintenance) verify whether or not the ECM is in fact the problem.
If it's going to cost you $1400, I would start to consider whether or not it's worth it. Granted, it's not rendering your car totalled, but it is a very costly repair after you've already dropped a significant amount of loot into the car. I understand the car has been with your family for a long time but maybe it's time to move on to a new one? That $1400 could be a decent down-payment on a new C230.
Anyhow, definitely have someone else (outside the dealership that does your maintenance) verify whether or not the ECM is in fact the problem.
