Need Help, Intermitted starts
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Joined: May 2013
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Need Help, Intermitted starts
Iv got a 2001 Sport trac with just 56000 miles on the clock.
About Oct. it would not start up for my wife (her truck) It would turn over just fine, but not start.
I got home and its started right up for me.
Then in Dec. it did it to her again, so we called the garage to come get it, but in the mean time, I got over to the truck and checked out all the fuses, then tried to start it and it fired up. I drove it over to the garage and they checked it out on the scanner but no codes and it just kept starting up for them.
I had them change out the fuel filter and starter rely while it was there, but they told me that unless it did it while they had it, all they could do it spend a lot of my money chasing what ever it was down.
Well today it did it again to my wife, would crank over very strong, but would not start. After sitting for a bit, she got it to start running.
ANY ID’S?? Not sure evern where to start??
About Oct. it would not start up for my wife (her truck) It would turn over just fine, but not start.
I got home and its started right up for me.
Then in Dec. it did it to her again, so we called the garage to come get it, but in the mean time, I got over to the truck and checked out all the fuses, then tried to start it and it fired up. I drove it over to the garage and they checked it out on the scanner but no codes and it just kept starting up for them.
I had them change out the fuel filter and starter rely while it was there, but they told me that unless it did it while they had it, all they could do it spend a lot of my money chasing what ever it was down.
Well today it did it again to my wife, would crank over very strong, but would not start. After sitting for a bit, she got it to start running.
ANY ID’S?? Not sure evern where to start??
Logistics Pro
Joined: Jun 2009
Posts: 4,810
Likes: 83
From: Cedar Rapids, IA
The symptoms you describe are pretty consistent with a couple of different, and common, issues. They are consistent with a failing fuel pump, and also consistent with an intermittent crankshaft position (CKP) sensor signal.
If the fuel pump were the issue you would not have sufficient fuel pressure at the injector rail. If you happen to have a fuel pressure gauge on you when the truck won't start, you can pretty quickly determine if fuel pressure is the issue. Some folks have also claimed to have intermittent fuel pump inertia switches which would cause identical symptoms. I question this though as the inertia switched I've had apart should never become intermittent, especially considering how little operation the switch experiences.
If the CKP sensor signal were intermittent, you would not get spark or fuel injector pulse. Either are pretty easy to test with an inline spark tester or a noid light set respectively.
-Rod
If the fuel pump were the issue you would not have sufficient fuel pressure at the injector rail. If you happen to have a fuel pressure gauge on you when the truck won't start, you can pretty quickly determine if fuel pressure is the issue. Some folks have also claimed to have intermittent fuel pump inertia switches which would cause identical symptoms. I question this though as the inertia switched I've had apart should never become intermittent, especially considering how little operation the switch experiences.
If the CKP sensor signal were intermittent, you would not get spark or fuel injector pulse. Either are pretty easy to test with an inline spark tester or a noid light set respectively.
-Rod
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Thanks for gettin back to be
I was thinkin the CKS. My 1995 F250 PSD has a habit of going though them
Could you tell me if the fuel pump is in the tank, or under the truck?
I'll figure it out soon enough, but figured I'd ask
Thanks for your help
I was thinkin the CKS. My 1995 F250 PSD has a habit of going though them
Could you tell me if the fuel pump is in the tank, or under the truck?
I'll figure it out soon enough, but figured I'd ask
Thanks for your help
Logistics Pro
Joined: Jun 2009
Posts: 4,810
Likes: 83
From: Cedar Rapids, IA
It's both! 
It's in the fuel tank (which happens to be under the truck). You'll need to drop the tank to replace the pump. Depending on the fuel tank location you might be able to remove the bed of the Sport Track to access the pump without dropping the tank. You might get to decide which way is more work.
-Rod
It's in the fuel tank (which happens to be under the truck). You'll need to drop the tank to replace the pump. Depending on the fuel tank location you might be able to remove the bed of the Sport Track to access the pump without dropping the tank. You might get to decide which way is more work.-Rod
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Joined: Mar 2011
Posts: 82
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it happened to me
I found on my taurus the switch on the transmission was only making intermittently. by moving the gear shift lever while cranking at the same time it would start up., both in park and neutral. the switch allows it to only start in park or neutral. had to adjust/rotate the switch a little and it solved my problem.
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