190E intermittantly stalls when going into R or D
10-08-2011, 11:42 AM
#1
Member
Thread Starter
190E intermittantly stalls when going into R or D
Hi,
My girlfriend has a 1992 190E 2.3 with 160,000 kilometers on it. On cold days around 5-10 degrees celcius she will go out and start the car and it will idle fine in Park or Neutral. But as soon as she moves the lever into R or D the engine sometimes will drop idle so low the engine cannot compensate for the idle drop and will stall. Other times it goes into gear and idles without a problem. It seems to only happen after the engine is dead cold say sitting over night. Some other fourms were saying something about a vacuum valve in the passenger fender well that adjusts vacuum to the engine?? Never heard of this before.
Unfortunatly I am more familiar with W126's and W203's and my knowledge on W201's is rather poor.
My girlfriend has a 1992 190E 2.3 with 160,000 kilometers on it. On cold days around 5-10 degrees celcius she will go out and start the car and it will idle fine in Park or Neutral. But as soon as she moves the lever into R or D the engine sometimes will drop idle so low the engine cannot compensate for the idle drop and will stall. Other times it goes into gear and idles without a problem. It seems to only happen after the engine is dead cold say sitting over night. Some other fourms were saying something about a vacuum valve in the passenger fender well that adjusts vacuum to the engine?? Never heard of this before.
Unfortunatly I am more familiar with W126's and W203's and my knowledge on W201's is rather poor.
10-12-2011, 12:26 AM
#3
Member
Well not for nothing. When was her last tune up?
My son's 93 2.3 had very poor cold drive offs and sometimes would stall.
I did a well over due tune up and symptoms disappeared. Just changed Rotor, Cap and Plugs, no adjustments needed just plug and play ( if you get the pre-gapped plugs, I chose the NGKs). Cleaned Air Fliter, changed the oil/filter and also placed some Techron additive.
I think the new plugs, cap and rotor had the most benefit. I placed Techron a week earlier and it still stalled at in the morning.
Now it drives off with out hesitation. In fact pulls very nicely.
For extra measure, I will be swapping the Fuel Filter, Damn expensive even for an after market FRAM filter, looked just like my 911 filter.
Will also do trans, diff fluid change shortly.
My son's 93 2.3 had very poor cold drive offs and sometimes would stall.
I did a well over due tune up and symptoms disappeared. Just changed Rotor, Cap and Plugs, no adjustments needed just plug and play ( if you get the pre-gapped plugs, I chose the NGKs). Cleaned Air Fliter, changed the oil/filter and also placed some Techron additive.
I think the new plugs, cap and rotor had the most benefit. I placed Techron a week earlier and it still stalled at in the morning.
Now it drives off with out hesitation. In fact pulls very nicely.
For extra measure, I will be swapping the Fuel Filter, Damn expensive even for an after market FRAM filter, looked just like my 911 filter.
Will also do trans, diff fluid change shortly.
