Won't crank!
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Freshman User
Joined: Jun 2007
Posts: 28
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From: Goden B.C. in the Rockies
Won't crank!
Tuesday problem with smoke. (See thread "Thick smoke")
I found an extra fuel filter just upstream of the fuel pump. I drained the water separator/filter in order to change the extra filter.
Now it won't crank. I just get one clunk, no rotation. Can air in the fuel line cause this?
Batteries show full charge with Minkota tester (I don't have a hygrometer). Battery connections are good, just cleaned and tight.
What to do?
I found an extra fuel filter just upstream of the fuel pump. I drained the water separator/filter in order to change the extra filter.
Now it won't crank. I just get one clunk, no rotation. Can air in the fuel line cause this?
Batteries show full charge with Minkota tester (I don't have a hygrometer). Battery connections are good, just cleaned and tight.
What to do?
Post Fiend
Joined: Feb 2006
Posts: 11,892
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From: Middle Tennessee
Originally Posted by Goldenboy
Can air in the fuel line cause this?
Logistics Pro
Joined: Jun 2005
Posts: 4,243
Likes: 16
From: AZ
No, air in the fuel line will not prevent the engine from cranking over. I'd guess the clunk you are hearing is the starter relay...but usually I hear that described as a click. Try turning your headlights on and have someone watch your lights when you try to start the truck. If they dim considerably it would indicate a battery problem or a connection problem. Be sure the starter to relay cable is clean and tight. Was the truck running alright the last time you shut it off?
Post Fiend
Joined: Feb 2006
Posts: 11,892
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From: Middle Tennessee
Originally Posted by Tenn01PSD350
Nope. Check relay and connections at the starter. Maybe turn the crank some via the nut on the balancer and see if it will engage.
Senior User
Joined: Dec 2006
Posts: 307
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From: Tooele, Utah
your starter could possibly hanging up try having someone hold the key to crank and you crawl under the truck and tap on the starter body with a hammer this will sometimes free the starter up and let it spin.
Hotshot
Joined: Feb 2007
Posts: 10,499
Likes: 10
From: Sterling Heights,Mi
Originally Posted by fbilly420
your starter could possibly hanging up try having someone hold the key to crank and you crawl under the truck and tap on the starter body with a hammer this will sometimes free the starter up and let it spin.
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Laughing Gas
Joined: Jul 2004
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Mine just did this to me this week. Cleaned up the battery terminals (for the 2nd time in 2 weeks) and put some terminal grease on them and really tightened them up. and bang fired right up. But when mine was doing this my dash lights where low on power and very dim including the WTS light.
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Lead Driver
Joined: Jun 2007
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From: Hampton, Maryland.
Originally Posted by Tenn01PSD350
CAUTION!!!!! I just reread this. Do not attempt to start the truck while turning the crank with a socket. I hate to say this as it appears to be common sense but I would sure hate to see someone get hurt. Sorry.
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Freshman User
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From: Goden B.C. in the Rockies
Well, got it towed to the dealer. Turns out there was a short under the vavle cover, and a fire which fried the #8 injector, which leaked fuel into the cylinder, filling it completely. Would not crank due to hydraulic lock.
Looks like about $1500 to fix. 3 wiring harnesses, new injector and labour.
Thanks to all for the helpful suggestions.
BTW, I could not turn it with a wrench, of course. And I knew eneough not to leave the wrench on while cranking, not that it would have cranked anyway,LOL.
Looks like about $1500 to fix. 3 wiring harnesses, new injector and labour.
Thanks to all for the helpful suggestions.
BTW, I could not turn it with a wrench, of course. And I knew eneough not to leave the wrench on while cranking, not that it would have cranked anyway,LOL.
Post Fiend
Joined: Jul 2005
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From: 21791
So Glad to hear you got the problem fixed. Lucky that the fire didn't catch much else on fire, with all that open fuel and the vented crankcase gasses. Whooewww count your blessings. That's expensive for what you're getting, new injector and seals for $150, the valve cover gasket and harness for $100. Labor a few hundred... Wow