Depends why , a hole in a piston could mean a full rebuild could mean 3 grand or more .
A bad valve could be a grand or less . could even be a collapsed lifter ?
As far as driving it ,,,,,, you may very well do further damage by driving it .,
You would be wise to ask why there is no compression .
For what it's worth, Ford 3.8 engines of that era are notorious for blowing head gaskets. That could be your problem.
Depends. If you have a cracked piston, there would be a huge amount of crankcase blowby pressure. If you have a bent pushrod, the intake valve may not be opening and it could be a 10 minute fix. A burned valve can be detected by running compressed air into the cylinder and listening at the exhaust manifold, (when the valve has been moved to closed). A sticky valve could be the only problem, and that can easily be done without even taking the head off, by removing the spring and rotating the valve in an electric drill. But if the piston is cracked, it is pretty much time for a rebuild. It can be done in the car, by removing the pan and head, but the rod bearings would have to be done and that piston replaced at least.
HI, Always get a second opinion.. "o" compression could be
1)blown head gasket
2) bad piston rings
3) hole in piston
4) burnt valve
5) lying mechanic
The motor would run very bad and shaky Please get a second opinion. might just need a tune up..
good luck
tim
Sounds like a valve isn't closing. Get the valve cover off for a look
The diagnosis is that one cylinder (of the 6 cyl., 3.8 L engine) has "0" compression. How much do you think this fix would cost for a 2000 mustang? And is it okay to drive it?
