Question about 1992 GMC Jimmy
Replaced fuel pump, filter and relays. Still wouldn't start. checked relay again and i am not getting power to the relay therefore not getting power to my fuel pump. Any help would be nice. you can get a hold of me at [email protected]. That is my email thank you
I'm not sure of vin? My info shows oil pressure switch in parallel with fuel pump relay, so if that switch is functional and has voltage, once you crank it enough to bring up oil pressure, the pump should run even without the relay. The voltage for load side of relay and oil pressure switch comes from ecm B fuse. The voltage for control side of fuel pump relay comes from pcm.
Any other issues besides fuel? Engine cranking do you have spark at the plugs and fuel injector pulse? If your missing the last two, have to check for rpm signal.
Posted on Dec 17, 2017
SOURCE: 1999 GMC Jimmy won't start.
firstly where is fuel pump relay as i have never seen a GMC jimmy sorry about that but have you ever seen a foden ?? well the first thing is to check the fuse,if fuse is ok which can be checked by looking at it as its transparent or a piece of wire with a light bulb .across the battery.to find the relay is easy if you dont know where it is,When this piece of americana decides to work just turn ignition on and listen for the click of relay ,then when it doesnt start listen for click again or rather an absence of a click,sounds more like a dodgy pump in the tank or the connections going to it.when it wont start try thumping the fuel tank with the ignition on and if it is a sticky pump you might hear it start then at least you will know where the fault is.Another fault that i have come across with relays is that where the relay is passing a heavy load then its possibe for the contacts to burn inside the relay.When this happens then if it is possible to seperate the relay cover and clean the contacts with a points file (remember them ) or a piece of fine emery paper if the cover breaks taking it apart then use a bit of black insulating tape to repair the cover.Thats assuming the pump is in the tank and not bolted to the chassis near the fuel tank but that design with external pump i havent seen on a europeon car for nearly 20yrs .
Posted on Nov 05, 2008
SOURCE: 2000 jimmy fuel relay switch
It should be inside the Fuse Relay Box under the Hood on the Drivers Side. The Diagram of the Relays should be on the Inside of the Cover, If Not, It is in the Owners Manual. Please Rate My Response! Thanks!
Posted on Feb 02, 2009
Fuel pump relay is in your gluve box. I belive there are three relay's there and it could be the middle one. Getting old memory bad LOL.
Posted on Apr 05, 2009
I believe it's the middle relay in the glove box. You should feel the relay click on when you turn the key's, but you only have 2 seconds.
Posted on Apr 05, 2009
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