[8shelbyz8]

Hi. I have a stock 88 tona shelby z. I let it sit for 3 days and now the boost gauge says that i am running about 4-5 pounds of boost. The car seems to be pretty slow now. I just don't know what happened?

Here's what I think that it could possibly be but not sure.

1. Catalytic converter has rattled for a few months and it ran fine. maybe it finally completely collapsed.

2. I think that the head might be cracked.

3. might have blown the head gasket but there is no white smoke.

4. Maybe just blew the turbo

I don't know what it is so if anyone could suggest what it might be and how to fix it please help me. thanks in advance.

 

[Guest]

waste gate could be stuck

 

[8shelbyz8]

How would i find it and fix it?

 

[Timmay2]

Its under the hood. Unstick it.

Really though, the turbo forum on here covers all of that in great detail, just do a search for the word stuck in that forum.

 

[Guest]

ok look at the pics on the thread,where the turbo is right above it is the waste gate actuator rod that is hooked on the waste gate take it off and wiggle it around and re-connect it and take it for a drive and see if it worked


http://www.turbododge.com/forums/f7/f28/165359-88-turbo-i-working-engine.html

 

[Guest]

in the first two pics look at the second one you can see the rod and where it connects to the waste gate

 

[8shelbyz8]

OK i didn't get the rod from the wastegate. I did drive it today though and if I gradually came into the throttle it would boost up fine for a little while. Then it started to not boost up at all again. It sounds like a blow off valve going off over and over like ssss ssss ssss ssss ssss... if I stay in the throttle. And if I have high rpms and come into the throttle it sounds like a belt squealing. would this be the wastegate or something else?

 

[Guest]

no thats not the waste gate did you check all your hoses to see if theres any cracks in them

 

[8shelbyz8]

Could this be my catalytic converter? It has collapsed and it rattles. I took the car out again and it took over a 1/4mile to get up to 55. If i put it in neutral and hold it to the floor it won't rev over 4000 rpm. I checked the vacuum lines and they look fine unless i missed one.

 

[ol"blue]

Hi. I have a stock 88 tona shelby z. I let it sit for 3 days and now the boost gauge says that i am running about 4-5 pounds of boost. The car seems to be pretty slow now. I just don't know what happened?

Here's what I think that it could possibly be but not sure.

1. Catalytic converter has rattled for a few months and it ran fine. maybe it finally completely collapsed.

2. I think that the head might be cracked.

3. might have blown the head gasket but there is no white smoke.

4. Maybe just blew the turbo

I don't know what it is so if anyone could suggest what it might be and how to fix it please help me. thanks in advance.

Catalytic converters can become plugged-up but they can't collapse. Unhook the exhaust from the turbo and see if it cures the problem.

 

[ol"blue]

What, or who, did you run over to crush your cat? (Converter).

 

[chilort]

My $0.02: leak in the hose from high pressure turbine side to the intake.

 

[Polygon]

1. Catalytic converter has rattled for a few months and it ran fine. maybe it finally completely collapsed.

The rattling is from the material breaking up. It can clog up the cat. I would replace it regardless. That's where you search should start.

2. I think that the head might be cracked.

Not unless you see steam coming from the exhaust.

3. might have blown the head gasket but there is no white smoke.

While a head gasket can blow and you might not see steam. However, I don't think this is your problem. You can easily test this by doing a compression test.

4. Maybe just blew the turbo

I doubt it. You'd see smoke.

If the cat doesn't fix it I'd run a compression test on all cylinders and I'd pressure test the intake/vac system.