PeachParts Mercedes-Benz Forum - View Single Post - COLD START INJECTOR Removal or Blocking???

UT_Tech · #5 03-08-2008, 09:50 AM

The fuel fitting for the cold start valve is an odd size. I don't think you can find a cap for it. This isn't a terribly expensive part if it's even bad. It might be OK. You should first remove it (watch out, fuel under pressure!) and with check if it's leaking. When removed attach the fuel line but leave the electrical connector unplugged. Pull out the high voltage center wire from the coil to the distributor and ground it so the car won't start. Don't try plugging the cold start valve opening with a rag or tape. It'll only get sucked into the engine and cause big problems.

Have a helper run the starter. When the engine turns over fuel system will pressurize and you can see if the valve is leaking. It might not be the cold start valve. It might be the thermo-switch wich controls the valve.