97' 7.3 compression issues - Ford Powerstroke Diesel Forum
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post #1 of 3 Old 08-02-2007, 08:35 AM Thread Starter
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97' 7.3 compression issues

Its a 97' 7.3 turbo diesel, unkknown miles (its free and I havent picked it up yet) but the truck will start up and idle fine but there is no compression in cylinder no. 6. it blows smoke constantly, and the injectors were replaced after the problem started. it has pretty much all new sensors all around. The Mechanic who looked at it is guessing its either rings or piston and a possiblity of just the head gasket. where is a cheap place to buy these products?
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post #2 of 3 Old 08-02-2007, 08:38 AM
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Originally Posted by Pro-Fab View Post
Its a 97' 7.3 turbo diesel, unkknown miles (its free and I havent picked it up yet) but the truck will start up and idle fine but there is no compression in cylinder no. 6. it blows smoke constantly, and the injectors were replaced after the problem started. it has pretty much all new sensors all around. The Mechanic who looked at it is guessing its either rings or piston and a possiblity of just the head gasket. where is a cheap place to buy these products?
is it low on compression or does it literally have 0 compression? Makes a big difference...

head gasket is unlikely...but is possible. Id be thinking more something along the lines of valvetrain or rings/cylender walls. A cylender leakage test would be the first thing i would look at doing.

does it use any coolant?? could be cavitation along the cylender wall too....
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post #3 of 3 Old 08-02-2007, 10:37 PM Thread Starter
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its low compression sorry. no consumption of coolant. cavitating along wall would constitute a new block? I am hoping its just rings but i do not have the truck in my possesion so i do not know all the symptoms. are there any common problems with low compression if so what is its cause usually?
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