Fuel Pump Relay
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New User
Joined: Mar 2004
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From: grand prairie, tx
Fuel Pump Relay
Hello all--
Newbie here with a question. Just recently starting having trouble starting my 94 Ranger. 5-spd manual v-6 3.0. Replaced the battery and all seemed fine for a few days then showed up again. Started reading the forum and noticed several recommendations to replace the fuel pump relay. After reading that and then trying to start the truck again I did notice that it was trying to crank just fine.. not struggling as if were a battery or charging problem. So ran down to the local auto parts store and picked up a relay. Question is do I need to disconnect the battery before I replace it and will I need to reset the computer (not throwing any codes)? Thanks in advance for any input.
By the way, spent hours yesterday browsing the forum, really enjoyed it and got a lot of info!
Newbie here with a question. Just recently starting having trouble starting my 94 Ranger. 5-spd manual v-6 3.0. Replaced the battery and all seemed fine for a few days then showed up again. Started reading the forum and noticed several recommendations to replace the fuel pump relay. After reading that and then trying to start the truck again I did notice that it was trying to crank just fine.. not struggling as if were a battery or charging problem. So ran down to the local auto parts store and picked up a relay. Question is do I need to disconnect the battery before I replace it and will I need to reset the computer (not throwing any codes)? Thanks in advance for any input.
By the way, spent hours yesterday browsing the forum, really enjoyed it and got a lot of info!
Postmaster
Joined: Oct 2003
Posts: 4,516
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From: SoCal
Try this, turn the key to run-not start- & listen for the fuel pump. It should run for 2 seconds. If you dont hear it go ahead & replace the relay. If you do hear it, try giving it a little throttle & see if it will start. still nothing, check for spark.
Cargo Master
Joined: Feb 2002
Posts: 2,414
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From: Tucson USA
Ive got a 94 4.0 and have a start problem when it get hot and you need to start again like after fueling. I can pull the FP relay let it cool and drop it back in and it will start right up. Save your old relay, drop it in a open slot and if you have the same problem at least when hot either pull and cool the one thats in there or just drop in the old one. Works for me.
Hank
Hank
Postmaster
Joined: Oct 2003
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From: SoCal
Yeah, it would sure be handy if it would just quit and stay that way, so you could find the problem.
It would be nice if it was just acting up hot so you could try Hanks neat little trick of cooling off different components.
Until it's fixed just keep pausing the key at run & listening for the fuel pump. If you dont hear the pump, try giving the gas tank a good whack with your hand, then turn the key to run again to see if that got the pump running. Good luck.
It would be nice if it was just acting up hot so you could try Hanks neat little trick of cooling off different components.
Until it's fixed just keep pausing the key at run & listening for the fuel pump. If you dont hear the pump, try giving the gas tank a good whack with your hand, then turn the key to run again to see if that got the pump running. Good luck.
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New User
Joined: Mar 2004
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From: grand prairie, tx
Went ahead and replaced the relay even tho the blasted thing hasn't acted up again... it was a $4 part so I'm not really out anything and the other was 10 yrs old.... now as long as everything else doesn't start feeling its age as well, I should be ok. Thanks for the input. Really appreciate ya takin the time. Sure I'll be back with more questions. 
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Postmaster
Joined: Oct 2003
Posts: 4,516
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From: SoCal
These old RAngers are really hard to kill, my 87 has 223K on it and still going very strong. So I would'nt worry about it starting to feel it's age. Now that mine is nicely broken in, I figure on driving it for another 223K.
If you're lucky thhat new relay will solve your no start, keep us posted.
If you're lucky thhat new relay will solve your no start, keep us posted.
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New User
Joined: Mar 2004
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From: grand prairie, tx
Hope you're right 87. I love this thing. Don't get to drive it myself very much cause it's a stick and I've got a bum left knee... but it still gets used almost everyday. Has 140k on it and only major work has been the tranny. What's your oil preference?
P.S. It's started 3 days in a row now... keeping my fingers crossed.. LOL
P.S. It's started 3 days in a row now... keeping my fingers crossed.. LOL
Postmaster
Joined: Oct 2003
Posts: 4,516
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From: SoCal
The only lubes i've been using since 1979 have been Amsoil, and i'm very impressed by it. I've used it for about 900,000 miles in various cars/trucks/motorcycles. The Ranger gets their 10-40 engine oil with 80-90 in the manual trans & diff. In my wife's 95 Taurus I use their 10-30 in the engine & their ATF in the (excuse my language) automatic trans. I dont like automatics & all the extra problems & extra expense that they create. But my dear wife "just wants to put it in D & go"
Sounds like the new relay might have solved your problem.
Did you get your bum left knee from a motorcycle accident, thats how I got my bum right knee. I ride my current bike (900 Kawasaki) a lot less agressively. I use Amsoil 10-40 in it.
Sounds like the new relay might have solved your problem.
Did you get your bum left knee from a motorcycle accident, thats how I got my bum right knee. I ride my current bike (900 Kawasaki) a lot less agressively. I use Amsoil 10-40 in it.
Last edited by 87 XLT; Jul 4, 2004 at 02:23 PM.
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From: grand prairie, tx
Have heard conflicting stories about changing high mileage vehicles over to synthetic oil, but I know I prob need to start babying her a bit more than I do. The miles that get put on her now are mostly city miles and they can be rough on a vehicle.
The knee is a product of track in junior high. 3 scopes and a total replacement later and the 5 speed and I don't get along so well anymore. I really, really miss driving her. Now just looking forward to showin a little TLC and start on some minor fix-ups.
The knee is a product of track in junior high. 3 scopes and a total replacement later and the 5 speed and I don't get along so well anymore. I really, really miss driving her. Now just looking forward to showin a little TLC and start on some minor fix-ups.
Postmaster
Joined: Oct 2003
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From: SoCal
One of the things I really like about synthetic is how clean it keeps my engines even though I only change it every 12K (mostly highway driving). But in a high mileage engine that extra cleaning ability can cause problems by washing away sludge that is sealing up tired out seals.
So your best bet is to just keep doing what you have been.
So it was a track injury, i guess knee joints must be more complex than they seem as I dont know anyone that has had really good results after surgery. Eventually i'll need a joint replacement thanks to an accident while dirt bike riding. But thats down the road a few years. Good luck with your minor fix ups.
So your best bet is to just keep doing what you have been.
So it was a track injury, i guess knee joints must be more complex than they seem as I dont know anyone that has had really good results after surgery. Eventually i'll need a joint replacement thanks to an accident while dirt bike riding. But thats down the road a few years. Good luck with your minor fix ups.
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Joined: Jan 2004
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From: SW Va
Tx_harleygirl, mind sharing where you found that relay for only $4 ?????
Most places here (Va) they go for $10-20.
Shure hope that cures your problem.
If so, it's gota be one of the least expensive vehicle fixes I've run accross lately.
At those prices, it would pay us to carry a spare or two in the glove box!!!!
Most places here (Va) they go for $10-20.
Shure hope that cures your problem.
If so, it's gota be one of the least expensive vehicle fixes I've run accross lately.
At those prices, it would pay us to carry a spare or two in the glove box!!!!