Help.. slow turn over after warm
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Senior User
Joined: Dec 2007
Posts: 255
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Help.. slow turn over after warm
I have a 1978 F-100 w/ 351M. After the truck is good and warmed up after driving for a while, when you cut the truck off and go to restart it it wont hardly start. The engine barely turns over almost as if the batt were dead. Is this a sign of a bad batt or starter? or what?
It definantly is because the truck is warm because the more you drive it the worse it gets. And i let the truck cool for a while and it got better.
It definantly is because the truck is warm because the more you drive it the worse it gets. And i let the truck cool for a while and it got better.
Junior User
Joined: Dec 2007
Posts: 86
Likes: 0
From: Solon
I have the same problem kinda. After my truck gets warm and lets just say I stop to put in gas. when I go to start it, it seems to turn over hard. A mech. friend of mine said those damb old fords and there high compression. I dont know if its thats true but when it cools off good like you said. It turns over more freely. I put in a new starter and batt. It didn't help. Good luck
More Turbo
Joined: Mar 2002
Posts: 606
Likes: 3
From: Colstrip, MT
It's probably that Green Bay license plate on the front. Just kidding. A couple things - poorly manufactured rebuilt starters or, as was mentioned previously, a modified exhaust system that causes the starter to suffer from the dreaded "heat soak". My expensive solution was to buy a "Mean Green" starter, which has quality parts, and you can "clock" or rotate the starter away from the heat source. I haven't had problem 1 since the mean green was installed
Elder User
Joined: Feb 2008
Posts: 640
Likes: 1
From: US/Baja border
Originally Posted by Mil1ion
Headers heating up starter?
Timing is off
This is a common thing called: Hot Start problem
Timing is off
This is a common thing called: Hot Start problem
But yes, timing is another thing to check, glad you brought it up.
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Elder User
Joined: May 2006
Posts: 947
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From: Spokane, Washington
I had that problem once, I just cleaned all of my connections (wire's and other lovely stuff) and I have never had that problem again until my battery went kaput lol :-). Trying cleaning it then if still the same problems it is def a timing issue. Cleaning ground wires does miracles sometimes
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Cross-Country
Joined: Mar 2007
Posts: 76
Likes: 1
I installed a summit mini starter on my 79 F150 and it fixed that problem on mine. I'd say all around it made it start 100x better cold or hot. It seems to spin at least 1.5x faster then the oem starter did but it was turning slow when hot.
Junior User
Joined: Sep 2004
Posts: 89
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From: trailer park
Before you go out and spend any money on new parts clean all battery connections then add a new heavy guage ground wire from the engine block (where the battery ground connects) and run it over to the frame ( clean a spot first ) in front of the steering axle and I'll bet you this will solve your problem. I did mine 10 years ago with the exact same starting problem and never had a starting problem since. Early Ford cars/trucks are notorious for ground problems. I learned this way back with my 65 galaxie and 74 pinto. This is a low cost permanent fix for ground problems.
Laughing Gas
Joined: Apr 2001
Posts: 868
Likes: 3
From: New Glasgow, Nova Scotia
With the engine hot enough to drag the starter, try retarding the timming a couple of degrees at a time and restart engine. If it clears up your timming was off. Is the charging system working fine, a good battery will rebuild it's charge on it's own if left for a while. If the charging system is not working properly you could be running the truck on battery power and not the alternator. If these are both fine than I would say the starter bushings are worn out , they become more noticeable with heat. Just a thought, good luck.