Hard Starting when hot
Thread Starter
|
Posting Guru
Joined: Jan 2003
Posts: 1,507
Likes: 0
From: Magrath
Hard Starting when hot
Ok, I did find a similar thread, but I don't think it is the same problem as what I am encountering.
http://www.fordtrucks.com/forums/sho...=hard+starting
What is happening is the truck will start up and run fine when cold. After a run (20min or more) is when the problem arises. If I only shut it off for a few minutes (no more than 2-3) than it will start right back up. If I let it sit any longer, it will crank for a bit and eventually start. It usually will crank for a good 7-10 seconds before starting in this condition.
One thing I did find that makes a difference is to crank the truck over about 3-4 cranks, turning the key to the off position and then cranking it again. It will usually start within a couple cranks if i do it this way.
Any help or suggestions.
http://www.fordtrucks.com/forums/sho...=hard+starting
What is happening is the truck will start up and run fine when cold. After a run (20min or more) is when the problem arises. If I only shut it off for a few minutes (no more than 2-3) than it will start right back up. If I let it sit any longer, it will crank for a bit and eventually start. It usually will crank for a good 7-10 seconds before starting in this condition.
One thing I did find that makes a difference is to crank the truck over about 3-4 cranks, turning the key to the off position and then cranking it again. It will usually start within a couple cranks if i do it this way.
Any help or suggestions.
Posting Guru
Joined: Aug 2002
Posts: 1,493
Likes: 1
From: Great NW
Hard Starting when hot
I had a very similar problem. It took me awhile to figure it out but I eventually solved it...
Background: Newish complete engine that I installed in my truck, which was supposed to have a new alternator on it. New battery & cables, new starter, solenoid. Pretty much everything.
I was having starting issues after having the engine warmed up. Originally, I thought that the higher compression in a warm engine was keeping my starter from turning the engine over. After all, everything else was new. The engine would turn over fine when it was cold though.
After screwing around with other systems for awhile (carb, ignition), I did a battery check only to find out it was not being completely charged, and therefore, did not have enough power to apply to the starter when starting. I changed out the old voltage regulator, which didn't fix it. So after eliminating all of the other possibilities, I replace that and voila` no more issues.
Obviously, avoid replacing parts which don't need to be replaced (like me), but I finally solved the problem. Check each component's function first, by using standard operating tests.
Background: Newish complete engine that I installed in my truck, which was supposed to have a new alternator on it. New battery & cables, new starter, solenoid. Pretty much everything.
I was having starting issues after having the engine warmed up. Originally, I thought that the higher compression in a warm engine was keeping my starter from turning the engine over. After all, everything else was new. The engine would turn over fine when it was cold though.
After screwing around with other systems for awhile (carb, ignition), I did a battery check only to find out it was not being completely charged, and therefore, did not have enough power to apply to the starter when starting. I changed out the old voltage regulator, which didn't fix it. So after eliminating all of the other possibilities, I replace that and voila` no more issues.
Obviously, avoid replacing parts which don't need to be replaced (like me), but I finally solved the problem. Check each component's function first, by using standard operating tests.
Freshman User
Joined: Sep 2002
Posts: 49
Likes: 0
From: Sullivan, IN
Hard Starting when hot
I have an 89 F150 with the 300 6 and I had to put a heat shield around the starter to fix this problem. It works like a champ now. But if it's been doing this for a while you probibally burned out the bearings in the starter and will have to get a new one.
