7.3 HELP

[bailey1]

Hey guys new to the forum and was hoping for a little direction with my 2001 f350...well long story short i was passing a car when all of a sudden i heard a pop and squeal..truck started to shake and had a loss of power, white smoke coming out of the exhaust..intake sound different and and exhaust has a different sound to it..limped the truck home only could do about 50mph due to the shake in the motor..truck has 120,000 miles and only has a AFE intake and 4 inch exhaust..could it be a blown turbo or head gasket???? please help this is my first power stroke and only had it a week..thanks guys

[T.Berry]

I have seen the same thing happen. Focus on the pressure side of your turbo intake. Some times the bands for the dufting will loosen or brake under boost conditions and pop off. If everything looks good, remove the inlet to the low pressure side of the turbo so you can see the turbine wheel. Take a wood dowel or non marring tool and see if the wheel in the turbo rotates freely. If it doesn't or there are sticky spots, You got turbo problems......

[bailey1]

thanks for the quick reply..i will check it out right now and get back to you on what i find out..thanks again

[atvrider93]

are there any codes? A turbo not contributing would cause power loss but I don't see it making the truck shake

[bailey1]

I havent checked for codes was going to get a code finder after i looked at turbo..would a code come up if turbo was bad? is it worth buying a 400.00 code scanner?..

[bailey1]

ok so i checked the turbo from the air filter side and it spun freely,put it all back together and took it for a test drive to see if a fault light would come up and nothing..truck didn't shake but did throw white to grayish smoke..only started shaking after i got it to over drive..got home and parked it and truck started making a bad knocking noise from back of motor..motor started to bounce around i shut it down immediately..sorry for lack of knowledge new to ford diesel

[460+]

Might have a bad injector. I had one with a split tip do that.

[bailey1]

ok will a code scanner pick up something like a bad injector or bad turbo?...Dont wanna shell out that kind of cash if i don't need to...

[T.Berry]

I agree with 460+ on the problem with injectors. If the engine starts and runs but has a hard knock the tip of the injector may be gone and hopefully it hasnt damaged the piston. Water in the fuel can cause this to happen and when water goes through the hot injector tip, it flashes to steam and blows off the tip. Another possibility is the camshaft position sesor went bad. That should give you a code:

[bailey1]

alright I'm off to pick up a scanner now...how would i check the injector tips? would i have to just pull them and look for breakage?....thanks guys for the replys..