Engine keeps shutting off

DANDISON PEPPLE

MEMBER
1996 MERCEDES BENZ C220
4 CYL
AUTOMATIC
247,400 MILES

My car will not start in the morning except when my foot is on the throttle cable and once, I remove my foot it shuts off and when I put it in gear it will shut off. When I power A/C it will shut off, but when l disconnect the actuator, it will start normal and when l plug back the actuator it will shut off.

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
48,363 POSTS

It sounds like you have a vacuum leak or a ISC unit that is bad, also we should run the codes to see what comes up here are guides to hep you with the problem, please do the vacuum leak test when the engine is cold. I have included a diagram below for the location of the ISC.

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

and

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.

Image (Click to make bigger)