1986 f250 starting problem?
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1986 f250 starting problem?
86 f250 351w 4v. starts fine when cold, but if I drivr 5 minutes to gas station and turn it off when I run in(full operating temp) it cranks slow like its dying. Starts fine if left to sit till it cools down again.. any suggestions?
Logistics Pro
Joined: Sep 2011
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From: Algona,WA
Does the truck have headers? sounds like a weak starter, starter is heat soaking, or ignition timing is possibly too far advanced.
FTE Legend
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From: NY and VA
First thing is to make sure ALL connections are clean and tight. As Matthew mentioned , it sounds like the bushings in the starter are worn, according to the symptoms. If you take the starter off, check to see if there is slop in the end where the drive is. Happened to me in Virginia when all my starter bushings were in NY. If you go to "box" store to get a starter, get the "premium" a little better quality for the money.
Logistics Pro
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From: Algona,WA
If you do wind up changing the starter. I highly recommend you switch to the new style PMGR starter. It's a very simple conversion. Starter weighs half of the old direct drive starters. It is half the size, it is gear reduction, draws a little less amps than the original and is not easily affected by heat soak. I've been thrilled with mine. $45 for a brand new one to the door as well. Just a thought.
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From: NY and VA
Wonder what you were talking about with the PMGR starter, so I looked into it. Looks good and repair brushes look easy enough to change. "It's a poor day when you don't learn something". Thanks for sharing.
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Let me add that if I jump it when it it warm it starts right up, starter will work fine with a jupm start or my jump box...
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FTE Legend
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Logistics Pro
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http://www.ebay.com/itm/High-Torque-Ford-Mini-PMGR-Racing-Starter-302-351-NEW-/130649669582?pt=Motors_Car_Truck_Parts_Accessories&hash=item1e6b53bfce&vxp=mtr
You have an automatic transmission right?
You have an automatic transmission right?
Laughing Gas
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Over time battery cables can corrode internally causing weak starts and blown up starter solenoids (relays).
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From: Virginia
Here's a simple test; Take it out and warm it up, and then bring it back home. Let it sit the required time in the driveway, and then go out and pump the gas pedal a couple of times before you try to crank it. Then crank it. Does it crank a little faster than it normally would? If it does, I would lean toward the timing being too far advanced. Usually pumping the gas a couple of times will flood the engine and kill the plugs in the beginning, and if the timing is too far advanced it will let the engine turn over faster till they start firing. Just a test to see what is going on.
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