I see. yes does sound like possible head gasket leak

 

Yeah would it be better to borrow a pressure tester from a parts store or go to a shop and have it tested. What pressure would I need to build to determine if it's leaking or not?

 

https://solarconduit.com/shop/media/...file_21_14.jpg






12 psi I think is what I did last time

 

Ok might be Saturday before I get to it, driving the back up vehicle back and forth to work right now. Any more thoughts on the truck dying at idle?

 

Are you in the upstate NY area? I have a gauge you could use.

 

Nope, would be nice I live in mobile, alabama. I do appreciate the offer though. How much does a pressure tester run? I seen advance has one for 160 seems high don't it?

 

Single bank misfires can be a little hard to troubleshoot. Could be lower intake gasket, injector o-rings, o2 sensors, even a bad catalytic converter on one side.

Also I've seen a low idle cause random misfires.

I'd check that the IACV is clean. Also, with ultragauge, what does it show for MPH at idle? I had an idle problem because the ECM thought I was driving down the road at 88mph, while the SLABS (that actually measures the roadspeed and sends it to the other computer and gauge cluster) was showing correct speed.

 

Don't know what the IACV is? I haven't looked at the mph on it while it idles crazy I would assume 0. I don't have either cat, so thinking majority of my problems stem from that. I plan on ordering a new y pipe to be done with that part of the restoration.

 

IAC is the idle air control. It's what the computer uses to control the idle speed. They can get gummed up inside.

 

Ok will check it when I get off work today, which is in bout 6 hours. Anything special to clean it with or will some throttle body spray work?