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Old 03-12-2014, 03:01 PM
greenleaflandpest greenleaflandpest is offline
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any diesel tech do gooders here?

Recently bought a 2003 f350 dump with a 6.0. has 40,000 miles on it. had about a 240 mile drive home from where i bought it and noticed if I had to go up any steep hills or get on the gas..once the rpms go up usually over 2,000 the turbo sounds like the engine has a rev limiter on it. "Figures"(rolling eyes) Truck sounds great at idle, no smoke, no check engine notices either. seems like turbo is releasing pressure and not holding boost. Im no diesel tech, any ideas fellas? THAnks!
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Old 03-12-2014, 03:06 PM
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tnmtn tnmtn is offline
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i'm not a technician, but can suggest you check out www.oilburners.net go to a subforum four engine and ask away. you should get some good responses there. good luck,
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  #3  
Old 03-12-2014, 03:12 PM
Barnabas Barnabas is offline
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POWERSTROKE.ORG
OR
POWERSTROKEARMY.COM

Dont get addicted to modding if you stop in there
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Old 03-12-2014, 03:23 PM
greenleaflandpest greenleaflandpest is offline
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Hey Thanks, I do have the same question going in another forum for diesels, just figured to throw it on here if anyone had another opinion.
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Old 03-12-2014, 07:41 PM
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CLARK LAWN CLARK LAWN is offline
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Need to be specific. Are you actually loosing boost or are you just cruising and don't need the boost?
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  #6  
Old 03-12-2014, 08:04 PM
Mark13 Mark13 is offline
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Quote:
Originally Posted by greenleaflandpest View Post
Recently bought a 2003 f350 dump with a 6.0. has 40,000 miles on it. had about a 240 mile drive home from where i bought it and noticed if I had to go up any steep hills or get on the gas..once the rpms go up usually over 2,000 the turbo sounds like the engine has a rev limiter on it. "Figures"(rolling eyes) Truck sounds great at idle, no smoke, no check engine notices either. seems like turbo is releasing pressure and not holding boost. Im no diesel tech, any ideas fellas? THAnks!
The computer in the 6.0's can make them idle smooth even with some fairly significant problems. You'll hear one idling and all seems well until you hear it drive way or under heavy throttle and you can tell something isn't right.


Where are you located?
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Old 03-12-2014, 11:07 PM
greenleaflandpest greenleaflandpest is offline
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the turbo spools all the time at low rpm but it would start to spool and release on and off when I was going up any steep hills or stepped on the gas, what I hear is normally when you get on the gas and let go the turbo releases the pressure like it is suppose to. what is happening is the turbo revs up and spools releases spools release etc etc like a go cart with a rev limiter on it. it doesn't keep spooling to hold pressure and power unless you let off the gas
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Old 03-13-2014, 12:25 AM
dieselss dieselss is online now
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Could be the turbo or the waste gate.
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Old 03-13-2014, 02:22 PM
Monroe74 Monroe74 is offline
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any diesel tech do gooders here?

I had it happen to mine the exhaust to the turbo maybe loose or not mated up properly.
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Old 03-13-2014, 03:53 PM
tcm5483 tcm5483 is offline
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Look at all your turbo boots going from your turbo to the intercooler they are bad to get oil soaked and get weak a bust. Have had this happen a lot and like Monre74 said . it could be the downpipe coming off the turbo or could be leaking around the y pipe that feeds the turbo from manifolds .
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