Mechanics

BMW 528E FUEL FILTER PROBLEM

1986 BMW 528e • 200,000 miles

I have a 1986 bmw 528e and ever since I got it I have had to replace fuel filter, fuel pump relay and a fuel hose. After I replaced the fuel hose my car started having an erratic idle, it goes real high then drops real low, up and down continuously. What is the problem exactly? My guess is that it is the idle control valve. Am I correct?

Thank you
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Guest
October 26, 2012.




Not just the ICV but the idle control unit may need replacement. Also check the two wires going to the ICV, if they are broken or not making a good connection, it will not idle correctly. Let me know what you find or if you need more help.

Dr. Hagerty
Oct 26, 2012.


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