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Old 11-20-2005, 11:40 AM
Registered User
Join Date: Jul 2002
Location: maryland
Posts: 4

I have an '88 300TE at any speed stall but starts right up. changed ovp fuses changed fuel pump relay with a spare I had . now won't start at all but cranks well. put in old fuel pump relay started right up. I expect the stalling to continue. could it be the spare relay is bad? or when I disconnected the battery does the computer reset? before I but another relay just wonderin if anyone had any thoughts.

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Old 11-20-2005, 12:46 PM
Registered User
Join Date: Sep 2003
Location: France
Posts: 487
hello norman25 ,
I have the same thing on my 260E 1988.

I changed a lot of parts including OVP relay, cleaned tank, filters etc and default not yet solved.

A lot of possible causes are described in many threads.

Let us know.
Keep us posted especially if your problem is solved
Present cars:
My car: E-class 420CDI, 2008, W211, V8,[/B] 50 000km

Wife's one: C-class 220CDI Sport Coupé, Euro, 2002, W203. 245000km

Son's one: GLK class 220CDI, 2009, W204

Sold E class 260E, W124, 1988 beloved car sold after 489 000 kilometres of reliable services (engine M103, clutch and 5 speed manual gear box all original).
E-class, W210 320CDI, 2000[/B], 225 000km, Sold
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Old 11-20-2005, 01:02 PM
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Join Date: Jul 2001
Location: SoCal
Posts: 1,303
Although we haven't had a problem with our fuel pump relay, I have some experience with the OVP relay. A new one I bought went bad within 2 weeks. so I disassembled it. Poor assembly procedures at Bosch are the guilty party. Resoldering the bad contacts have allowed it to continue working for the past 3 years, so far. I 'reconditioned' the old relay, which suffered from the same problem, and it resides in the spares kit.

I don't know it the pump relay has similar problems, but if it comes apart, that is what I would do before thowing more money at a problematic part.

'91 MB 190E 2.3
'08 RAV4 Ltd 3.5
'83 Lazy Daze m'home 5.7
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Old 11-20-2005, 02:39 PM
Registered User
Join Date: Jul 2002
Location: maryland
Posts: 4
thank for responding guys, but what I find oddest is that the ovp is that same one but when I switched back to the old fuel relay the car purrs perfectly. hate to toss parts at it but maybe its just a bad fuel relay.

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