I know this sounds like a very simple question, but what size compression tester do I need for my 2.8?

I have a hesitation problem and I'd like to check the compression.

 

the tester will come with 2 fittings, one of them will work.
Just rememebr to test it while holding the thottle body full open, the other spark plugs removed and the coil unplugged.

 

Hesitation problems are VERY rarly caused by compression problems. Now I'm not saying that it's a good idea to test it. It gives you a good idea of overall engine condition, but my bet is that it'll check out fine.

Now, instead of just unplugging the coil, you should unplug both plugs at the ignition module. This will not only keep the engine from firing the plugs, but will also keep it from firing the injectors as you crank.

Hesitation is caused in most cases by ignition related problems and/or fuel problems. When you first open the throttle, the engine is lean for a split second and will give you a small hesitation if either system is not up to snuff.

 

Yep...I agree...it could really be a lot of things right now (fuel filter, clogged cat, etc). But I don't have a compression tester so I thought it would be a good idea to get one and check this old girl out. Even if it's not a compression issue, I will have a good baseline for the future.

Ignition was the way I was actually leaning. I changed the plugs and wires, but that didn't help. Next was the cap and rotor. I was thinking of this "kit":

http://store.summitracing.com/defaul...=KeywordSearch

Does anyone have an opinion on this? I was thinking about just replacing the cap and rotor, but since Summit has this kit, I thought it might be better to replace 90% of the ignition and completely eliminate that from the equation. Any opinions?