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  #1  
Old 12-12-2011, 11:24 AM
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Join Date: Jan 2008
Location: Southern MD
Posts: 36
Surging Idle

morning guys, I have a 2000 ML320 that surges at idle in park (1000-1200 RPM) and when I'm at a stop (600-700RPM). Thought it was bad gas, but it didn't go away on fill up like I was expecting it to. I am not sure what is causing it, it drives and shifts fine. Any help would be greatly appreciated. Thanks in advance.
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1993 300D 2.5 Turbo
Daily Driver.... 238,000 miles and counting (Gone for an '03 Camry)
2000 ML-320
New Daily Driver...139,xxx and still in one piece...
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  #2  
Old 12-12-2011, 02:44 PM
oldsinner111's Avatar
a parent should die first
 
Join Date: Nov 2008
Location: bristol,tn
Posts: 5,087
You can buy Maf Cleaner and clean the MAF sensor.Also clean throttle body.Check your vac lines beffore you clean
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  #3  
Old 01-04-2012, 06:57 AM
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Join Date: Jan 2008
Location: Southern MD
Posts: 36
Thanks oldsinner, turned out the throttle body just needed to be cleaned. She idles just fine and I even took her on a 1000 mile round trip home to see the parents for the holidays. Unfortunately this morning, the parking brake got stuck, took it off and the light stayed on, had to pull it forward with my foot to get the warning light to go out. Then the vehicle wouldn't shift from park with the brake covered. This is all new, but it was really cold outside, which doesn't explain much. I'll do some searches on my own, just wanted to get the problem out there and see if anyone a whole lot smarter than me knows whats going on.
__________________
1993 300D 2.5 Turbo
Daily Driver.... 238,000 miles and counting (Gone for an '03 Camry)
2000 ML-320
New Daily Driver...139,xxx and still in one piece...
Reply With Quote
  #4  
Old 01-04-2012, 07:05 AM
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Join Date: Jan 2008
Location: Southern MD
Posts: 36
found it... hopefully this will help others as well...


ML55 problem
__________________
1993 300D 2.5 Turbo
Daily Driver.... 238,000 miles and counting (Gone for an '03 Camry)
2000 ML-320
New Daily Driver...139,xxx and still in one piece...
Reply With Quote
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