Hi Guys, So basically my car (87 300DT) will start off at a low idle arorund 600 rpm then the rpm will start jumping like it goes from 600 to 800 back to 600 then back to 800 or 700. Does anyone have the same problem, and how can i fix it?


Thanks!

-Shant

I think you are looking at that trunk badge incorrectly.......

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Jimmy L.
'05 Acura TL 6MT
2001 ML430 My Spare

Gone:
'95 E300 188K "Batmobile" Texas Unfriendly Black
'85 300TD 235K "The Wagon" Texas Friendly White
'80 240D 154K "China" Scar engine installed
'81 300TD 240K "Smash"
'80 240D 230K "The Squash"
'81 240D 293K"Scar" Rear ended harder than Elton John

Somewhat common on the 603 ... at least mine does it occasionally, and a lot of people have experienced it. Generally it's an EDS issue ... it could be the OVP or the idle actuator (pretty sure that's what it's called) on the back of the IP. I'd have to brush up on the test procedure as it's been a while since I looked into it ... I have the printout at home but can't help from here at work. Maybe someone else can chime in.

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1987 300D, arctic white/palomino--314,000 miles
1978 240D 4-speed, Euro Delivery, light ivory/bamboo--370,000 miles
2005 Jeep Liberty CRD Limited, light khaki/slate--140,000 miles
2018 Chevy Cruze diesel, 6-speed manual, satin steel metallic/kalahari--19,000 miles
1982 Peugeot 505 diesel, 4-speed manual, blue/blue, 130,000 miles
1995 S320, black/parchment--34,000 miles (Dad's car)

If it is not this, it could be a shut off valve on it's way out. The lever on mine likes to sit a bit low, and sometimes rocks up and down. If I manually raise it up, the idle sounds like it goes up a little bit. Worth taking a look at! But more likely, it is an intermittant ELR.

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Dan
2005 E320 CDI - 246k
1987 300SDL TD05-16g, Herlevi pump, Elbe manifold, 2.47 LSD - 213k
Past: 1987 300D - 264k