Help!!!!!!!!!!!!!!!!!!!!!!

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hoghunter

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Think i blew the head gasket after f***ing up and putting my thermostat in backwards how expesive and difficult is this to fix. car struggles and sputtersw when trying to accelerate when car reaches opperating temp
 

LOUDSHO92

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Could just swap the motor. Freshen up a junkyard motor and you are good to go.
 

TimboSHO

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I actually broke a valve when I blew a cooling hose and had no working temp guage in the 91. I tried to limp it home by pouring water in it, but it started knocking and then shut off seconds later, unable to restart until I came back the next day. I thought I spun a rod, but I broke a valve. When I took the head off, the gasket was pretty bad looking as well. Head gaskets on these aren't very fun. It's also possible to warp the aluminum heads. I would get some a 'block tester' kit to see if there is combustion gasses getting in the cooling system. Any white smoke out the exhaust? There are a number of things that could have been damaged, you just have to start checking them over....
 

STL. SHO

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Pull out the oil dip stick and look inside the oil fill cap and see if it looks like chocolate milk, also in the coolent.
 

Mr Anonymous

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A compression test would be the logical place to start... HG failures are pretty rare on these cars, but a good overheating can ***** them (and the heads) good.
 

hawkeye18

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I actually broke a valve when I blew a cooling hose and had no working temp guage in the 91. I tried to limp it home by pouring water in it, but it started knocking and then shut off seconds later, unable to restart until I came back the next day. I thought I spun a rod, but I broke a valve. When I took the head off, the gasket was pretty bad looking as well. Head gaskets on these aren't very fun. It's also possible to warp the aluminum heads. I would get some a 'block tester' kit to see if there is combustion gasses getting in the cooling system. Any white smoke out the exhaust? There are a number of things that could have been damaged, you just have to start checking them over....

Very impressive, breaking a valve on a non-interference motor. You must've warped the f*** out of those heads.
 

TimboSHO

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Very impressive, breaking a valve on a non-interference motor. You must've warped the f*** out of those heads.

Yeah, I bought it with the freeze plugs leaking and no working temp guage. Who knows how many people test drove it with no coolant in the system. I have a feeling it had been overheated quite a bit before I even bought it, so the one time I did it sent it over the edge!
 

hoghunter

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i just dont understand why the issue of chugging only happens with the car at operating temp. with the engine cold i have no issues other than a quiet valve clicking. had another friend tell me it could be the MAF sensor any yhuoghts on that
 

Mr Anonymous

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Try unplugging the MAF sensor and see what happens. Also could be a DIS issue, cracked plug insulator, bad plug wire, etc. If the car runs fine cold and there's no sign of oil in the coolant then you're probably OK and just have an ignition-related issue to solve.
 

hoghunter

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could a slack timing belt cause this problem also my noise at 1500 rpm now the car wont even start
 

jnrock

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Try unplugging the MAF sensor and see what happens. Also could be a DIS issue, cracked plug insulator, bad plug wire, etc. If the car runs fine cold and there's no sign of oil in the coolant then you're probably OK and just have an ignition-related issue to solve.

I agree with Mr Anonymous, if it runs that good cold and the fluid levels are okey (once you get coolant into it) run it and keep close watch on it and if there is no problem with fluids and still runs bad hot chech elsewhere.

The repair manual starts by saying "refer to removing engine section" for any major engine repair on SHO's so check carefully. Good luck
 

kevinspann

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could a slack timing belt cause this problem also my noise at 1500 rpm now the car wont even start

ATX or MTX?

Timing belt tensioner maybe? And now the timing belt could have jump enough that it won't run.
 

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