idle problem
03-27-2014, 12:58 PM
#1
Newbie
Thread Starter
Join Date: Nov 2013
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
1995 c220
idle problem
hi guys again thanks for all the great advice you offer!
my 1995 c220 has just over 100,000 miles on it. i have replaced the wire harness in the engine compartment, the maf sensor and spark plugs. the car ran fine after that and gets good gas mileage (25 miles city). the car is running great except when she is idling - fluctuates between 700 and 1000 rpms in park or when in drive. any advice would be much appreciated
my 1995 c220 has just over 100,000 miles on it. i have replaced the wire harness in the engine compartment, the maf sensor and spark plugs. the car ran fine after that and gets good gas mileage (25 miles city). the car is running great except when she is idling - fluctuates between 700 and 1000 rpms in park or when in drive. any advice would be much appreciated
03-28-2014, 11:21 AM
#2
Check the air pump. Located at the front of the engine on the left (drivers side) close to the frame.
It could be dirt, or a bad ground etc.
Get a decent mechanic who knows Mercedes. It is a 5 minute job to check, and 10 minutes to clean if necessary.
It is a DIY job, but you really need what to look for.
It could be dirt, or a bad ground etc.
Get a decent mechanic who knows Mercedes. It is a 5 minute job to check, and 10 minutes to clean if necessary.
It is a DIY job, but you really need what to look for.
03-28-2014, 03:01 PM
#4
Yes it can....It can also throw off your gas mileage, The sensor can force more fuel (or less) to the engine, and therefore the change in RPM's.
Last edited by ptcruiser; 03-28-2014 at 03:28 PM. Reason: added info.
