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#1
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89 190e 2.6 starts great and idles when cold. However, once the engine reaches operating temperature and is shut down, it is very difficult to restart and keep idling long enough to put it into gear. If you can get it into gear, it will then drive fine until you come to a stop - where it will idle rough an/or stall. If you keep your foot on the gas and keep rpm's at 1,200 or so it will keep running fine. I am thinking that this is a OVP problem or maybe an oxygen sensor gone bad. Any thoughts?
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jayhawk |
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Sounds like the OVP to me... you did a search, right?
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2006 E350 w/ 155k miles (Daily Driver) Previous: 1993 300E 3.2L Sedan w/ close to about 300k miles 2003 E500 Brilliant Silver (Had 217k miles when totalled!) 1989 300E with 289,000 miles (had for <1 yr while in HI) 03 CLK 500 cabrio (Mom's) 2006 C230k (Dad's) 1999 S420 (Mom's/Dad's) 2000 C230k Sport sedans 2001 CLK320 Cabrio (Mom's) 1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!) |
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The oxygen sensor would generate a "check engine" condition if the codes were pulled...the OVP would not.
I too, would point the fault to the OVP. Replacing it cured the same "hot start" problem I was having a few months ago.
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2009 ML350 (106K) - Family vehicle 2001 CLK430 Cabriolet (80K) - Wife's car 2005 BMW 645CI (138K) - My daily driver 2016 Mustang (32K) - Daughter's car |
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Or,a leaking EHA.
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The OVP and leaky EHA are more likely the problem than what I'll suggest; here it is anyway:
Fuel injectors leaking down into the cyls. Normally, this results in the car idling raggedly when restarting warm and the car has sat for a few mins., and not when you've stopped, got out and immediately restarted.
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Mike Murrell 1991 300-SEL - Model 126 M103 - SOHC "Fräulein" |
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How can I determine if there is a leak in the EHA. I replaced the engine in my car about three years ago after the old one dropped a valve and destroyed the piston at about 200K. I purchased a salvage engine with only 30,000 miles on it and it showed up with with all of the components attached to it, including the intake manifold and EHA. When I swapped out the engines I could not get the car to run even though it would initially fire up. So, I swapped the EHA's and it came to life. Thereafter, I noticed a large gash in the rubber boot under the EHA that I had removed. Is this the type of leak you are talking about?
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jayhawk |
#7
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If you haven't done so already, try this site's SEARCH facility -> EHA. There are a number of posts that discuss leakage and location of the EHA.
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Mike Murrell 1991 300-SEL - Model 126 M103 - SOHC "Fräulein" |
#8
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Thanks Guys! The problem turned out to be the OVP relay. Replaced it yesterday and all starting/idle problems have gone away. Jayhawk
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jayhawk |
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