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> Car left me stranded for the first time, Now the second time...What gives???
saigon71
post Jul 14 2015, 10:09 PM
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Placed my first call to AAA for free towing tonight. On my way to Harrisburg, the car cut out on me pretty bad several times. I kept going and it seemed to clear up.

After leaving my destination, it started doing the same thing...only this time, it quit completely. Nothing better than pushing your car off rt 22 by yourself three days after doing a Spartan Race. (IMG:style_emoticons/default/dry.gif)

When I turn the key, I hear the fuel pump kick in for a few seconds as it should. After sitting for a few minutes, I can get it to start but it will only run for about 15 seconds then dies. I did this several times, but the car won't stay running.

The fuel pump is a Bosch two-port and is only a few years old. Ambient temps were about 80 degrees and the engine wasn't even warmed up yet. I hope to dig into it tomorrow...any suggestions on what to check?

Thanks! (IMG:style_emoticons/default/beerchug.gif)

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EdwardBlume
post Jul 14 2015, 10:17 PM
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What a pisser... but at least you are driving it!
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Hank914
post Jul 14 2015, 10:46 PM
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(IMG:style_emoticons/default/agree.gif)

A pisser it is. Well stated.

A little known fact: the 914s will periodically assert their dominance over you. Mine did this multiple times the first year (vapor lock, starter, transaxle blowup, clutch cable) with each time a 100+ mile towing hit (yay for AAA Platinum)! I think it is jack stand withdrawals syndrome.

Just keep driving it, and pretty soon the teener will grow independent of the jack stands. Like a baby and their blankie.
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JeffBowlsby
post Jul 14 2015, 11:15 PM
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Flooded? Too rich? Failed TS2 or MPS.
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Ferg
post Jul 14 2015, 11:18 PM
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Dizzy points?
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DavidSweden
post Jul 15 2015, 01:37 AM
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QUOTE(Ferg @ Jul 14 2015, 09:18 PM) *

Dizzy points?


After my recent engine cut out I can recommend doing a compression & leak down test . It would have saved me a couple of weeks fault finding. I was convinced it was the FI it turned out to be a cylinder head problem.
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somd914
post Jul 15 2015, 03:49 AM
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Check for spark and fuel to begin with. Pertronix by chance? Go from there. If it looks like its too rich, check the CHT and the harness wire all the back to the ECU.
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Porschef
post Jul 15 2015, 04:07 AM
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The fact that you can get it to start and run after sitting makes me think it's a fuel delivery problem, especially after cutting out a few times. Was it worse under load?

Did you do anything with the tank during the resto? (I can't remember)

How's that fuel filter? Tank sock? Was it last changed with the pump, a few years ago?

Trigger points?
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saigon71
post Jul 15 2015, 05:55 AM
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QUOTE(Porschef @ Jul 15 2015, 06:07 AM) *

The fact that you can get it to start and run after sitting makes me think it's a fuel delivery problem, especially after cutting out a few times. Was it worse under load?

Did you do anything with the tank during the resto? (I can't remember)

How's that fuel filter? Tank sock? Was it last changed with the pump, a few years ago?

Trigger points?


Definitely worse under load.

Tank was re-sealed & pressure tested during resto. I looked in there last week and it looked spotless with the tank sock in place.

Fuel filter changed about a month ago.

Recently swapped out trigger points with another set (found the old set was causing my other FI problems).
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Big Len
post Jul 15 2015, 06:02 AM
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QUOTE(Porschef @ Jul 15 2015, 06:07 AM) *

The fact that you can get it to start and run after sitting makes me think it's a fuel delivery problem, especially after cutting out a few times. Was it worse under load?

Did you do anything with the tank during the resto? (I can't remember)

How's that fuel filter? Tank sock? Was it last changed with the pump, a few years ago?

Trigger points?


(IMG:style_emoticons/default/agree.gif) (IMG:style_emoticons/default/agree.gif)

Check again.
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saigon71
post Jul 15 2015, 06:35 AM
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QUOTE(somd914 @ Jul 15 2015, 05:49 AM) *

Check for spark and fuel to begin with. Pertronix by chance? Go from there. If it looks like its too rich, check the CHT and the harness wire all the back to the ECU.


Old school - points & condenser.
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Porschef
post Jul 15 2015, 06:39 AM
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Hairline crack in the cap?

Just remembered how that happened a couple times on the old Mustang. After sitting a while it'd fire right up. If you have a spare try it
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cary
post Jul 15 2015, 07:19 AM
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Is it the same after the engine got back to ambient?
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sb914
post Jul 15 2015, 08:41 AM
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QUOTE(saigon71 @ Jul 14 2015, 09:09 PM) *

Placed my first call to AAA for free towing tonight. On my way to Harrisburg, the car cut out on me pretty bad several times. I kept going and it seemed to clear up.

After leaving my destination, it started doing the same thing...only this time, it quit completely. Nothing better than pushing your car off rt 22 by yourself three days after doing a Spartan Race. (IMG:style_emoticons/default/dry.gif)

When I turn the key, I hear the fuel pump kick in for a few seconds as it should. After sitting for a few minutes, I can get it to start but it will only run for about 15 seconds then dies. I did this several times, but the car won't stay running.

The fuel pump is a Bosch two-port and is only a few years old. Ambient temps were about 80 degrees and the engine wasn't even warmed up yet. I hope to dig into it tomorrow...any suggestions on what to check?

Thanks! (IMG:style_emoticons/default/beerchug.gif)

Attached Imagewell at least now you can be added to the flatbed thread. (IMG:style_emoticons/default/poke.gif)

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pvollma
post Jul 15 2015, 10:14 AM
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QUOTE(saigon71 @ Jul 14 2015, 09:09 PM) *

Placed my first call to AAA for free towing tonight. On my way to Harrisburg, the car cut out on me pretty bad several times. I kept going and it seemed to clear up.

After leaving my destination, it started doing the same thing...only this time, it quit completely. Nothing better than pushing your car off rt 22 by yourself three days after doing a Spartan Race. (IMG:style_emoticons/default/dry.gif)

When I turn the key, I hear the fuel pump kick in for a few seconds as it should. After sitting for a few minutes, I can get it to start but it will only run for about 15 seconds then dies. I did this several times, but the car won't stay running.

The fuel pump is a Bosch two-port and is only a few years old. Ambient temps were about 80 degrees and the engine wasn't even warmed up yet. I hope to dig into it tomorrow...any suggestions on what to check?


My only experience with that type of behavior (76 2.0) was driving on 283 and having it stumble a few times. I started to pull off onto an exit and it quit completely, and would not restart. Had it towed to Tony, where they said it started right up. Turned out to be a loose ground wire on the fuel pump. They tightened it up and everything was fine.
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saigon71
post Jul 15 2015, 10:34 AM
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I am baffled. The car started right up this morning. I nervously took it for a test drive - no problems.

Let it run for a while but could not duplicate the problem. (IMG:style_emoticons/default/headbang.gif)
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saigon71
post Jul 15 2015, 10:35 AM
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QUOTE(pvollma @ Jul 15 2015, 12:14 PM) *

QUOTE(saigon71 @ Jul 14 2015, 09:09 PM) *

Placed my first call to AAA for free towing tonight. On my way to Harrisburg, the car cut out on me pretty bad several times. I kept going and it seemed to clear up.

After leaving my destination, it started doing the same thing...only this time, it quit completely. Nothing better than pushing your car off rt 22 by yourself three days after doing a Spartan Race. (IMG:style_emoticons/default/dry.gif)

When I turn the key, I hear the fuel pump kick in for a few seconds as it should. After sitting for a few minutes, I can get it to start but it will only run for about 15 seconds then dies. I did this several times, but the car won't stay running.

The fuel pump is a Bosch two-port and is only a few years old. Ambient temps were about 80 degrees and the engine wasn't even warmed up yet. I hope to dig into it tomorrow...any suggestions on what to check?


My only experience with that type of behavior (76 2.0) was driving on 283 and having it stumble a few times. I started to pull off onto an exit and it quit completely, and would not restart. Had it towed to Tony, where they said it started right up. Turned out to be a loose ground wire on the fuel pump. They tightened it up and everything was fine.


Thanks...I'll check the fuel pump wiring.
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914itis
post Jul 15 2015, 10:46 AM
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where is your fuel pump located?
Vapor lock?
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mrholland2
post Jul 15 2015, 10:47 AM
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Similar problem with a carbbed car. Turns out the gas tank was internally delaminating (disintegrating) and the metal pieces cut thru any filters and chewed up the insides of a few fuel pumps.

Just a thought

QUOTE(saigon71 @ Jul 14 2015, 09:09 PM) *

Placed my first call to AAA for free towing tonight. On my way to Harrisburg, the car cut out on me pretty bad several times. I kept going and it seemed to clear up.

After leaving my destination, it started doing the same thing...only this time, it quit completely. Nothing better than pushing your car off rt 22 by yourself three days after doing a Spartan Race. (IMG:style_emoticons/default/dry.gif)

When I turn the key, I hear the fuel pump kick in for a few seconds as it should. After sitting for a few minutes, I can get it to start but it will only run for about 15 seconds then dies. I did this several times, but the car won't stay running.

The fuel pump is a Bosch two-port and is only a few years old. Ambient temps were about 80 degrees and the engine wasn't even warmed up yet. I hope to dig into it tomorrow...any suggestions on what to check?

Thanks! (IMG:style_emoticons/default/beerchug.gif)

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forrestkhaag
post Jul 15 2015, 11:53 AM
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Mine did a similar thing recently and I did a similar thing recently... (the AAA tow) - the cause was faulty original wiring to the fuel pump / I am carbed so I simply wired from the switched pin on the relay board directly to the pump hot lead and it has been perfect ever since bypassing the original hot lead wire.

(IMG:style_emoticons/default/beerchug.gif)
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