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Author
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Topic: engine dies
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fastback40
Journeyman Posts: 24
From: irving, tx
Registered: Jun 2005
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posted 08-01-2005 10:10 PM
 
Got a 69 stang with a 351 motor. The car has mallory coil, hifire and unlite module. Talking to speedshop motor heads the ignition is ruled out cause mallory stuff either stops completely or runs fine. The car runs until it warms up then dies like turning off the key. I can wait a few minutes then it starts and runs 10 or 15 minutes then does it again. The temp gauge can go past the half mark on the factory gauge which I think is not good. Once it gets that hot I seem to have issues with the car dying course it could be a coincidense. I thought I heard something pop and then the problem started..
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68 Coop
Gearhead Posts: 5847
From: Mesquite, NV. 89027
Registered: Oct 2004
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posted 08-02-2005 02:23 AM
This will get you back to the top, if nothing else. I would almost swear that I saw something about coils doing that. Let me do a search, maybe someone will help out till then.
Found this, so hopefully you can get some use out of it.http://www.mustangsandmore.com/ubb/Forum1/HTML/007783.html Do a search, and type in Ignition Coils. I typed in bad coils, and it gave me a mixture of engine coils, and coil springs.
------------------
William
68 Coupe
289
Edelbrock 600
Performer Intake
Headers/X-pipe/Flowmaster 30's
C4
8"rear/2:79gears
"Restomod in Progress" Good friends are hard to find, even harder to leave, and impossible to forget. [This message has been edited by 68 Coop (edited 08-02-2005).]
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SkinnyMan
Gearhead Posts: 916
From: Tupelo, MS - USA (CA temporarily)
Registered: Jan 2005
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posted 08-02-2005 11:03 AM
quote:
Originally posted by fastback40:
Got a 69 stang with a 351 motor. The car has mallory coil, hifire and unlite module. Talking to speedshop motor heads the ignition is ruled out cause mallory stuff either stops completely or runs fine. The car runs until it warms up then dies like turning off the key. I can wait a few minutes then it starts and runs 10 or 15 minutes then does it again. The temp gauge can go past the half mark on the factory gauge which I think is not good. Once it gets that hot I seem to have issues with the car dying course it could be a coincidense. I thought I heard something pop and then the problem started..
If you have an aftermarket tachometer, check where it is spliced into the wiring. I put one in and had bad connections. Be sailing down the freeway in California, in the fast lane, and that puppy would die. No warning, no fuss, just die.------------------
SkinnyMan
Tupelo, MS Thank you, Thank you very much!
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fastback40
Journeyman Posts: 24
From: irving, tx
Registered: Jun 2005
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posted 08-02-2005 12:44 PM
Thanks Skinny, I'll check that when I get home. I do have an aftermarket tach.
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fastback40
Journeyman Posts: 24
From: irving, tx
Registered: Jun 2005
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posted 08-02-2005 08:15 PM
Well I replaced the coil and thought it was fixed, but problem came back and when I tried to keep it running like using the clutch I had a loud backfire. Car ran like it was running on 7 cylinders when letting off the gas. I'm wondering if'n it could be a shorting battery?
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mustangs68
Moderator Posts: 27681
From: Hampton Va MCA#39406 M&M #12 Member Mustang Club of Tidewater
Registered: May 99
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posted 08-02-2005 09:32 PM
ah,what kind of Carb?
Sam
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fastback40
Journeyman Posts: 24
From: irving, tx
Registered: Jun 2005
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posted 08-02-2005 09:54 PM
Edelbrock 4bbl...bought it a year and half ago.
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fastback40
Journeyman Posts: 24
From: irving, tx
Registered: Jun 2005
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posted 08-03-2005 10:02 PM
Well I'm only posting this cause it may help others. Seems I've fixed the problem. The problem turned out to be a faulty ignition switch bought at autozone for 16.00. Ford must have had issues with these or they used solderless connectors on the wire harness. One of the things it also fixed was my temp gauge it is now reading in the middle and above when at stop light. It used to ride bout quater way past the line. Guess I better look into a bigger radiator. Also the engine cranks way faster. It used to be sluggish when starting which I thought might have been the battery. Thanks all for your help..
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