87 - Fuel pumps will not come on
#1
87 - Fuel pumps will not come on
I need help! the fuel pumps will not turn on. Prior to not running at all, I could be going down the road and the truck would act like it was out of gas. it might start back up immediately or it might not. Replaced HP pump and one of two tank pumps. It would still do this intermittently. Now it does not run at all. Replaced the relay by the air box, no help. Tank switch tested OK. What recommendations does anyone have.
Dead 150
Dead 150
#2
Decendant of Jed Clampett
Join Date: Jan 2007
Location: Ohio
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Check the connections on the pump on the frame. Most of the older ones used 2 pumps. One in the tank, one on the frame on the driver's side. They had problems with bad connections at that one.
Jim
Jim
#3
I had a similar problem with my 86. I replaced the fuel pumps and relays first with no luck. It ended up being the TPS sensor. I replaced it and the truck ran great. No more stalls, no more studder.
Darren
Darren
#4
Having similar problem
i am having a similar problem with my 89 f150. except the back tank works fine and the front tank is the only one acting funny. the front tank has issues like the bogging down and studderin then when i swift to the back tank it goes back to working. also the front tank wont hardly let me put gas into it. yesterday i tried to put the change from my gas that the back tank wouldnt hold and it only let me put in .87 cents then it spit out what i would think is more than .87 cents worth of gas back out at me. also the front take fuel gauge reads overfull all the time like its grounded out or something. im not very mechanically inclined so i have taken anything apart of checked any connections or anything. do you guys know what might be causing these problems?
#5
Senior Member
i am having a similar problem with my 89 f150. except the back tank works fine and the front tank is the only one acting funny. the front tank has issues like the bogging down and studderin then when i swift to the back tank it goes back to working. also the front tank wont hardly let me put gas into it. yesterday i tried to put the change from my gas that the back tank wouldnt hold and it only let me put in .87 cents then it spit out what i would think is more than .87 cents worth of gas back out at me. also the front take fuel gauge reads overfull all the time like its grounded out or something. im not very mechanically inclined so i have taken anything apart of checked any connections or anything. do you guys know what might be causing these problems?
#6
We'd do it
iTrader: (1)
i am having a similar problem with my 89 f150. except the back tank works fine and the front tank is the only one acting funny. the front tank has issues like the bogging down and studderin then when i swift to the back tank it goes back to working. also the front tank wont hardly let me put gas into it. yesterday i tried to put the change from my gas that the back tank wouldnt hold and it only let me put in .87 cents then it spit out what i would think is more than .87 cents worth of gas back out at me. also the front take fuel gauge reads overfull all the time like its grounded out or something. im not very mechanically inclined so i have taken anything apart of checked any connections or anything. do you guys know what might be causing these problems?
#7
I need help! the fuel pumps will not turn on. Prior to not running at all, I could be going down the road and the truck would act like it was out of gas. it might start back up immediately or it might not. Replaced HP pump and one of two tank pumps. It would still do this intermittently. Now it does not run at all. Replaced the relay by the air box, no help. Tank switch tested OK. What recommendations does anyone have.
Dead 150
Dead 150