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-   -   No Tach, No A/C, CC jumpy = OVP (http://www.peachparts.com/shopforum/tech-help/221669-no-tach-no-c-cc-jumpy-%3D-ovp.html)

TAG 05-08-2008 11:08 AM

No Tach, No A/C, CC jumpy = OVP?
 
First a tip of the hat to everyone here. I've only recently acquired an '87 300E w/155k and the info here has enabled me to fix the windows, power steering pump and few other odds and ends.
The latest problem to tackle is summarized above: no tach, no a/c and the CC jumps from the set speed up and back again repeatedly. I'm not sure if these all point to the OVP or if they are independent of each other.
I've also disconnected the coolant level sensor to turn the light off on the dash if that is of any consequence.
I searched the posts here and it seems as though it may be the OVP but I'm not sure.

Mistress 05-08-2008 02:12 PM

Re-attach the coolant level sensor, if there is enough coolant in there and the light stays on you might need to replace the thermostat.

TAG 05-08-2008 02:33 PM

Ok...but is that related? And why wouldn't that indicated a bad sensor?

Arthur Dalton 05-08-2008 03:48 PM

Try giving fuse #7 a spin...

TAG 05-08-2008 04:07 PM

Cleaned of fuse #7. No go. Still interested in the thermostat theory.


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