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12-28-2018, 08:10 AM
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#1 |
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Registered User
Join Date: Aug 2016
Location: Danville Wv
Posts: 266
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Engine dies
So when I drive my truck I’ll be crusing in 4th gear and my engine will die. Then I can put it in neutral and start back up like no problem. I have replaced the fuel pump, fuel cap and sending unit. I don’t loose headlights or anything the engine just dies and restarts like nothing happened any clue what this may be?
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12-28-2018, 08:47 AM
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#2 |
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Registered User
 Join Date: Feb 2012
Location: Vinton, Va.
Posts: 473
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Re: Engine dies
Tell us more. For example- how long does it run before this happens and/or what type ignition and coil ? Cruising in 4th. Is that at 55 or 70 ?
New fuel filter ? Engine and carb ?
__________________
"You are not forgotten" USMC 75-79 (Aviation Ordnance Tech- F-4 Phantom) 1959 H-D Panhead. Owned since 1978. Currently with son in Lawton, OK. 1968 Chevy Custom SWB pick up. Fleetside. Lowered 4/6. Totally refurbished. 1966 Pontiac GTO. 4 speed. Saved original 389. Now has slightly built 455 engine. 355 rear gears. Very fun to drive ! |
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12-28-2018, 11:00 AM
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#3 |
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Registered User
Join Date: Aug 2016
Location: Danville Wv
Posts: 266
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Re: Engine dies
It’s a 72 350 with 50,000 miles on rebuild with a quadrajet and can be driving anywhere from 50-70 on flat interstate and the few times it has happened it happens after about 10 mins of running. Also have a hei with a new module installed new plugs and wires. Yes new filter.
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12-28-2018, 11:12 AM
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#4 |
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Senior Member
Join Date: Nov 2018
Location: Waterford California
Posts: 2,376
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Re: Engine dies
Make sure your HEI has a full 12 volts to it, they cut out like you describe when they are getting less than 12 volts.
Quick test is to run a 12 ga wire straight from your battery positive to the HEI bypassing the ignition switch and take it for a drive to see if problem persist. I have found over the years by trial and error when it comes to HEI's I always run directly from ignition switch to HEI bypassing the fuse panel which can also be a problem, not always but can be. I would suspect the coil last as HEI coils seem to be pretty bullet proof |
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12-28-2018, 11:15 AM
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#5 |
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Registered User
Join Date: Aug 2016
Location: Danville Wv
Posts: 266
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Re: Engine dies
I will check the power wire out the p/o spliced lots of wires I’ve replaced what I’ve seen but it could possible be that
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10-22-2019, 08:27 PM
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#6 |
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Registered User
Join Date: Oct 2017
Location: Battle Ground, WA
Posts: 91
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Re: Engine dies
Hey Noah did you ever figure your issue out? My 58 Apache, 350 is doing the same exact thing.
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10-22-2019, 10:58 PM
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#7 |
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Registered User
Join Date: Mar 2010
Location: Dyer, Indiana
Posts: 395
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Re: Engine dies
Vapor lock?
__________________
1969 Chevy K20 Longbed |
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10-23-2019, 08:23 AM
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#8 |
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Senior Member
Join Date: Feb 2010
Location: Falls City, Nebraska "100 Miles From Nowhere"
Posts: 2,219
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Re: Engine dies
Did you use the designated heat sink grease on the back of the new module? Also, my second 72 went through 3 Quadrajet filters in less than 100 miles until I installed a canister filter between the pump and the carb. The truck came from a sandy soil region in west Nebraska and had been sitting for years, the tank was full of fine grit.
__________________
Michael of the clan Hill, "Two Seventy Two's" 71 1-ton Dually 350 4-Speed 71 C/50 Grain Truck, 350 Split-Axle 4-Speed 02 3/4 ton Express 14 Indian Chief Vintage 1952 Ford 8N, "Only Ford Allowed On The Property"  "Be American, Buy American" 
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