How bout' the check valve? Doing the pumps and filter, might as well check the whole circuit while I'm making a mess of things.

Thanks.

JBoggs

Not sure what check valves you mean.
if you are talking about fuel return check valve, they are on the fuel pump itself.
if you are replacing the fuel pumps,than you are replacing the check valves.good luck Harald

It is behind the glove box, there are three relays there that look similar, the one on the right is the climate control relay, then there are two on the left, the one in front is the idle speed control relay and finally the one in the back is the fuel pump relay, pull the clips on the glove box insert and you will find it there.

http://www.detali.ru/cat/oem_mb2.asp?TP=1&F=107048%5F14F&M=117%2E967&GA=722%2E313&L=765%2E707&CT=F&cat=14F&SID=54&SGR=120&SGN=06

I just looked it up at work.
It is behind the behind the GLOVE box.
The bigger black one is the idle speed speed control unit and on the right of it is a silver fuel pump relay.

Bigger? all three are the same size

well thanks Carson for your nice reply, but I did say black,and no they should not be all the same size