Whining or winding sound in back

[calylove]

Hey guys new to the forum and the EX life. I have 91 XLT and it is great shape and runs like a champ. I notice one thing that has me stumped. When the truck is running I hear a winding sound. Almost like a small electric motor coming from back and under somewhere near the rear driver wheel. Any ideas on what it could be. Like I said, it is running great but the sound has me a little concerned. Thanks for your help and great job on the site.

 

[studd469]

winding sound

sounds like your fule pump. My old Ex made a similar to what you discribed. Turn your ignition to where your dash lights turn on, but do not turn the key to start the engine, you should here a similar sound for a few seconds. My fule pump made this noise, never had any problems with it.

 

[marragtop]

Agreed, has to be the fuel pump.

 

[PTBishop]

same here...mine is whining like no ones business...its eventually going to go out. you could replace it and avoid a no start or the truck leaving you stranded. or you could be like me and let it go until it stops working. :-D

 

[Darrman]

I had the same problem with my '91's pump, I let it go for a couple months, then it went from a whine to a huge bass sound, figured it was on its last leg, replaced it, problem solved.