bad fuel pump?
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Senior User
Joined: Aug 2009
Posts: 382
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From: Delta,UT
bad fuel pump?
My rear tank works but not my front. You hear no priming when you turn the key prior to starting so the pump either isnt getting power or its bad. What could be stopping the front pump from working?
Freshman User
Joined: May 2009
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there is a fuse for them but i dont know if it protects both pumps (or all 3?)-i would guess it does. did you run it low or out of fuel? i just bought 2 pump/sending unit assemblies from jcwhitney for $160 total. im gonna try it this weekend if it gets above 50 degrees outside.
Thread Starter
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Senior User
Joined: Aug 2009
Posts: 382
Likes: 0
From: Delta,UT
there is a fuse for them but i dont know if it protects both pumps (or all 3?)-i would guess it does. did you run it low or out of fuel? i just bought 2 pump/sending unit assemblies from jcwhitney for $160 total. im gonna try it this weekend if it gets above 50 degrees outside.
Anyone know if the fuel pumps each have their own fuse or if their both on 1?
Posting Guru
Joined: Jun 2002
Posts: 2,091
Likes: 3
From: Suffolk, VA USA
Unplug the tank connector and check for both power and ground. If you have both, then go in the tank for the pump. If no power, work your way back to the power switch. I'm not positive where the tank ground connects on an 89, but you can be sure its away from the tank. Don't discount continuity to ground.
Posting Guru
Joined: Jun 2003
Posts: 2,314
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From: southwest michigan
Unplug the tank connector and check for both power and ground. If you have both, then go in the tank for the pump. If no power, work your way back to the power switch. I'm not positive where the tank ground connects on an 89, but you can be sure its away from the tank. Don't discount continuity to ground.
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Fleet Owner
Joined: Aug 2005
Posts: 23,668
Likes: 301
From: Easton,Ks
You do not have a fuse for the pumps, you have a fuse link near the starter solenoid and it would be good along with the fuel pump relay and Inertia switch if the pumps in one tank runs along with the high pressure pump on the frame.
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