Thanks. I will try that.

 

Coolant dripping down into a cylinder will cause a misfire.

 

It has a new head gasket. I don't think that it is dripping down into the cylinder.

 

Was the replacement head a rebuilt TUPY or an aftermarket head, like Clearwater? I've read some bad reviews on Clearwater heads. Bad valves installations for one.

New lifters - Did you do a lifter preload check, verifying you had .020-.060" preload?

You may want to pull your valve cover and inspect the #1 cylinder valve springs, rocker arms centering (rocker arm bridge twist), and preload

 

It is possible. I have personally had it happen to me. Actually, it wasn't the head gasket. It was the block/head mating surfaces on a 289 Mustang engine that was rebuilt by a professional. Cold water leak. Coolant in the cylinder. Car and engine were completely detailed for show and installed with all accessories. I had to strip it, take it out, and send it back to the rebuilder. He hadn't properly checked the block and head for straightness. Or he plain just didn't do it. He planed the block and heads to get them square and brought the long block back to me. Not a fun or a happy time.

And, no matter how much diagnostic time or parts swapping you have done, the problem hasn't changed and still exists.

Therefore the improbable, however unlikely, must be considered.

 

I did put new lifters. It was a rebuilt head. If the valves or the lifters were not working properly wouldn't the compression test have read different for #1?

 

How would I figure out if this was my problem?

 

I appreciate all the comments and help so far. Tonight I will check the coil rail tonight and see what readings I am getting from that. Depending on the findings I will pull the valve cover really quick and see what the rocker arms and lifters are doing.

 

Maybe let it sit overnight. Get a borescope or one of those flextube things with a light and camera on it, pull the #1 plug, and see if you have any coolant sitting in there.

 

Not necessarily. If the lifter preload was off, the valve would close but the rocker geometry would be off, causing the (intake or exhaust) valve, to not be open long enough or being closed too long, causing poor combustion.

 

I Wil take the valve cover off this weekend and see what I come up with. Also check to see if there is any radiator fluid on the piston.

 

Did you replace the camshaft when you replaced the lifters? If not, that could explain the problem.

 

I did not. But it was running fine for 4 four days than I had a lifter collapse on me on cylinder 3 and had to take the head off again and but a new head gasket and new head bolts than its been doing it after that.

 

I have seen many vehicles have ECM issue with IGN Fire. Check to make sure there is spark on that cylinder. Obviously you have fuel pressure. Since you put new head gasket I would hope your compression is right. Anything after that should only be electrical. Since it is 2000+ you don't use a distributor so most likely I would check your Coil Rail first!

 

It is the computer. Got to get a new one. :/