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Old 12-20-2008, 01:37 PM   #1
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I think I got ripped off

Hey guys,

So I had to take my car to a Ford Performance shop up here (not my normal mechanic) because my serpentine belt needed to be replaced asap. While my car was there the mechanic said that when he was driving it, he could listen and tell that something wasn't right with my motor. He thought either a piston was broken, or something because I was loosing compression?? Anyways they recommended to do a compresion and leak down check. This is what they said the results were:

Cyl # Comp (psi) Leakage %
1 210 1
2 170 55
3 205 2
4 190 32
5 200 27
6 205 46
7 200 8
8 220 1

So they recommended I get a new motor... However, my little brother is a student at UTI and they did an emissions check and I almost passed (I have no cats). My quesion is if I had this much leakage wouldn't my emissions be a lot worse? Some of his professors listened to it as well and they said it was running perfect.

The motor has 82,000mi, and I have never noticed any problems with it. It has a vortech sq and full exhaust with a safe tune.

I'm just a little confused because this is supposed to be a reputable shop, and they seem to be pretty unethical charging me for something I didn't need. Any help would be sincerely appreciated.

-Alex
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Old 12-20-2008, 02:46 PM   #2
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Re: I think I got ripped off

The compression in number 2 looks a bit low...but you won't need a new motor to fix the problem. Get yours cleaned out .020 over and a new set of pistons and it is fixed.
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Old 12-20-2008, 03:06 PM   #3
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Re: I think I got ripped off

Could it be a head gasket?
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Old 12-20-2008, 03:10 PM   #4
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Re: I think I got ripped off

I don't think so. They did say that I needed a header gasket. I just thought they were messing with me on the numbers.
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Old 12-20-2008, 03:32 PM   #5
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Re: I think I got ripped off

They are about right. Just cylinders 2 and 4 are low. Which is why i asked about the head gasket.
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Old 12-20-2008, 07:42 PM   #6
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Re: I think I got ripped off

you don't at all need a motor. according to their numbers you are leaking down on cyl. 2 & 4. but they didn't tell weather it was leaking into the crankcase, the intake, or the exhaust. Finding that out is just a matter of pressurerising the cylinder and listening for where the air is leaking out. If it's going into the crankcase than you may need a hone job and some new rings, but if it's it's leaking into the intake or exhaust it may be a valve leaking from a broken spring or a burnt valve or a bad valve seat. you just need some more diagnisios
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Old 12-20-2008, 10:38 PM   #7
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Re: I think I got ripped off

Thanks a lot for the help guys
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Old 12-20-2008, 11:57 PM   #8
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Re: I think I got ripped off

yea i agree with louis and rob.
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Old 12-21-2008, 10:52 AM   #9
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Re: I think I got ripped off

any time
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Old 12-21-2008, 11:18 AM   #10
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Re: I think I got ripped off

get a second opinion and see how the new numbers match up and if the new numbers are off see if they are all off to the previous numbers but the same percent
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