eric©
Member
- Joined
- February 1, 2005
- Messages
- 32
- Reaction score
- 0
- City, State
- Detroit, MI (yeppers, redneck white boy invading D-town! :-P)
- Year, Model & Trim Level
- 1991 XLT 4x4
bad fuel pump?FIXED, updated
Truck:1991 XLT, auto trans, 4WD, stock driveline.
Symptoms:been having hard starting the past few months or so, where it seems like I have to crank it longer than normal to get it to fire. The past couple of weeks it won't fire unless I give it a bit of gas pedal (if I don't, it seems to just want to crank forever without firing).
The other day I was running low on gas, and it stalled pulling into the back yard. I forgot about it, and went to the parts store the next day. Get about 3 blocks away, and it stalls, took forever to get it restarted. Just barely made it to the gas station 3 blocks further away. Wouldn't idle for crap, had zero mid range power, had to give it a lot of gas to keep it moving. Put about 1/4 tank of gas in (only had a few bucks on me). No change in symptoms. Get to parts store, get the stuff for the GF's truck, try to make it home. Truck still doesn't seem to want to idle (wanted to stall out), could barely muster 25mph with pedal floored. Seemed to run slightly better with pedal floored than with little pedal. Barely made it home, and the truck stalled pulling into back yard, wouldn't restart.
Let it sit for a day, turn the key on, I can hear the fuel pump running for a couple seconds. It fires right up, and dies a few seconds later. I can repeat this cycle now until the battery dies. Fires right up, and dies seconds later, seemingly like the key got shut off. If I give it gas, it dies faster. I haven't actually timed it, but it seems like it shuts off in the same amount of time everytime. After it shuts off, I can hear the pump running for a second or two, and it always fires right back up, only to die right away.
I've never had a pump go weak on me, they've always either worked or they didn't. Am I dealing with a weak pump here? I don't have a fuel pressure tester, can I fudge it with a tire pressure tester? I also haven't replaced any parts yet. I'm planning on picking up a new filter and pump later today, and replacing the filter first to see if that has any effect before replacing the (much more expensive, lol) pump.
Truck:1991 XLT, auto trans, 4WD, stock driveline.
Symptoms:been having hard starting the past few months or so, where it seems like I have to crank it longer than normal to get it to fire. The past couple of weeks it won't fire unless I give it a bit of gas pedal (if I don't, it seems to just want to crank forever without firing).
The other day I was running low on gas, and it stalled pulling into the back yard. I forgot about it, and went to the parts store the next day. Get about 3 blocks away, and it stalls, took forever to get it restarted. Just barely made it to the gas station 3 blocks further away. Wouldn't idle for crap, had zero mid range power, had to give it a lot of gas to keep it moving. Put about 1/4 tank of gas in (only had a few bucks on me). No change in symptoms. Get to parts store, get the stuff for the GF's truck, try to make it home. Truck still doesn't seem to want to idle (wanted to stall out), could barely muster 25mph with pedal floored. Seemed to run slightly better with pedal floored than with little pedal. Barely made it home, and the truck stalled pulling into back yard, wouldn't restart.
Let it sit for a day, turn the key on, I can hear the fuel pump running for a couple seconds. It fires right up, and dies a few seconds later. I can repeat this cycle now until the battery dies. Fires right up, and dies seconds later, seemingly like the key got shut off. If I give it gas, it dies faster. I haven't actually timed it, but it seems like it shuts off in the same amount of time everytime. After it shuts off, I can hear the pump running for a second or two, and it always fires right back up, only to die right away.
I've never had a pump go weak on me, they've always either worked or they didn't. Am I dealing with a weak pump here? I don't have a fuel pressure tester, can I fudge it with a tire pressure tester? I also haven't replaced any parts yet. I'm planning on picking up a new filter and pump later today, and replacing the filter first to see if that has any effect before replacing the (much more expensive, lol) pump.