Hot starting problem
Thread Starter
|
New User
Joined: Feb 2001
Posts: 17
Likes: 0
Hot starting problem
Help, when my truck is cold it starts fine, but when it warms up (10-15 minutes) the starter drags like the battery is very low. I replaced the starter and wrapped it, tried a different battery, and checked the battery connections. Nothing helped; any ideas?
Senior User
Joined: Jul 2001
Posts: 109
Likes: 0
Hot starting problem
I've got the same problem. New battery, and she fires up right away when cold, even after sitting for a week without moving. When hot, though, it barely turns over.
ksd
69 F100 Explorer lwb 2wd FE 360 C6. WANTED: straight/clean styleside long box w/aux fuel tank for 67-69 F series.
ksd
69 F100 Explorer lwb 2wd FE 360 C6. WANTED: straight/clean styleside long box w/aux fuel tank for 67-69 F series.
Freshman User
Joined: Aug 2001
Posts: 38
Likes: 0
Hot starting problem
My 76 has the same problem -- has new battery, starter, and wires. I wish someone would tell us what it is!
Doop <
76 F-100 Custom (96K Original North Dakota miles) 360-C6 All stock
64 F-250 (Bought from the north slope of Alaska) 292-T18 4 speed
Doop <
76 F-100 Custom (96K Original North Dakota miles) 360-C6 All stock
64 F-250 (Bought from the north slope of Alaska) 292-T18 4 speed
Thread Starter
|
New User
Joined: Feb 2001
Posts: 17
Likes: 0
Hot starting problem
I replaced the groud stap from battery to frame and it did not help so I added a ground from the engine block to the frame and this improved the starting. Although some times it still takes 2 or 3 tries to get it going.
Laughing Gas
Joined: Nov 2000
Posts: 1,072
Likes: 3
From: tulsa
Hot starting problem
sounds like the starter is getting to hot. Are you running headers, they will heat the starter because they are closer then the stock exaust. Also how close it the exaust pipe to the starter. I had the same problem, The muffler shop bend the pipe wrong and got it too close to the starter. I'm also running a set of 406 exaust manifolds that offer much better flow than stock. try putting a starter heat shield on the starter and see if that helps.
Trending Topics
Freshman User
Joined: Jun 2001
Posts: 30
Likes: 0
Hot starting problem
i had the same problem on my 73 f-250.
as soon as i put the timing on 10 the problem
stop.
Good luck,
Gai.
as soon as i put the timing on 10 the problem
stop.
Good luck,
Gai.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!
Joe Kucinski
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!
Michael S. Palmer
The Best F-150 Deal of Every Trim Level (XL through Raptor)
Joe Kucinski
Freshman User
Joined: Mar 2001
Posts: 48
Likes: 0
Hot starting problem
common problem it seems, as i had the same with a 69 F100 with a six banger. Went through all the same things, battery, connections, etc... But the problem turned out to be my fan belt was loose and the when the motor got hot the valves got stuck. Not hot enough for the gauge to get high, but once I tightned the belt, the problem went away. Worth a try anyway. Maybe new belts, too?
Junior User
Joined: Mar 2001
Posts: 81
Likes: 0
From: Loomis, CA
Hot starting problem
had the same on my 68 390, although the 'dead battery' thing didn't happen every time- mostly just hard starting when hot;
no expert here, but one problem was the carb flooding, also a gasket leak behind the carb; after both problems were fixed, it starts up fine when hot;
also, doesn't this happen when the fuel to the carb evaporates after absorbing the heat from the manifold, but corrected with a spacer under the carb?
no expert here, but one problem was the carb flooding, also a gasket leak behind the carb; after both problems were fixed, it starts up fine when hot;
also, doesn't this happen when the fuel to the carb evaporates after absorbing the heat from the manifold, but corrected with a spacer under the carb?
Junior User
Joined: Aug 2001
Posts: 88
Likes: 0
Hot starting problem
Spark advance, vacume advance whatever you like to call it , I had a 78 supercab with a 400 , I did all the things you guys talked about , it turned out that the spark advance was not working , when its running and you set the timing ( by ear )
to make it run good you are advancing it too far , then when you shut it off it wont turn over coz the timing is too far advanced,
After I sold it A mechanic told me there are ( magnets i think )
in the distributor that get stuck and then the advance does'nt work,
anyway I would hardly ever drive that truck because of that,
So now you have one more thing to look at, Hope you can getter
goin
Benford
to make it run good you are advancing it too far , then when you shut it off it wont turn over coz the timing is too far advanced,
After I sold it A mechanic told me there are ( magnets i think )
in the distributor that get stuck and then the advance does'nt work,
anyway I would hardly ever drive that truck because of that,
So now you have one more thing to look at, Hope you can getter
goin
Benford
Senior User
Joined: Aug 2001
Posts: 118
Likes: 0
Hot starting problem
mostly I have seen that to be caused by timing too far advanced. or the vacume advace in the distributor is frozen in an advanced state (you know..rust) Cold it starts fine but when hot it will start hard. Timeing needs to be retarded. Are you running a stock ignition box. Check to see if it is overheating, or the potting(black gue on the back of the box) is melted. If so get a new one. They are less than $20.
Senior User
Joined: Aug 2001
Posts: 194
Likes: 0
Hot starting problem
it seems that we have all had the same problem, i got mine to go away pretty easily though,
my engine doesnt leak any fluids so the starter was already clean so i replaced it as it was stock, replaced all battery wires with heavier 2 gauge wires and got a new battery and solenoid, then had a tuneup and it was good to go
my engine doesnt leak any fluids so the starter was already clean so i replaced it as it was stock, replaced all battery wires with heavier 2 gauge wires and got a new battery and solenoid, then had a tuneup and it was good to go