wildspear

2000 Cherokee, I-6 4.0L, AW-4

I have what I think is a cracked cylinder head. A local shop says they can pressure test it for 45bucks. Is this the test I need to determine a cracked head?

Is it even worth finding out?

dukie564

Compression Test / Pressure Test - Yes

Absolutely worth finding out. If it is cracked (common on your year), extended use with it like that will lead to crankshaft bearings getting eaten away or worse. Do not wait on this.

LoveMy89Anya

shouldnt this be attached to something? it runs down from the purge canister thingy. i noticed it while replacing my starter wire today....

wildspear

Can't really tell where that is (too much glare). But is your jeep running fine? You can try plugging the hole and run the jeep and see if anything starts acting weird. I know thats not the answer your looking for but if you can find out where and what the hose is for then you'll beable to determine what it might have to be hooked to.

Try traceing it back and see where it might go.

LoveMy89Anya

lol i said right where it comes from....

XJUSMC

Not sure cause of the pic, but I think thats your A/C drain hose. When you have the a/c on for a while and park, you know that puddle of water on the floor it comes from that hose. It's condensation.

I believe from the pic it's under the canister, if its that a/c hose it should not be connected to anything.

wildspear

Duhhh! Sorry I only had one cup of coffee so far. If it's that darn round ball looking thing, ya it hooks up to something. That provides a vacume for the AC. I dont know if other syestems use it (heater, cruise control???) but I do know the AC does.

The hose from that ball runs to this (passenger fender);


and this;


actually to a valve at the back of this (fire wall). I hope this help more than my first post...LOL (I have my second cup of coffee now).

LoveMy89Anya

ill take a better pic a little later today when the sun is lower and wont create as much glare.

fantic238

It is the breather tube for the purge canister. It's ok.

wildspear

Great!, so I drank all that coffee and took the pictures and I still got it wrong...... at least I'm wide awake...lol

sj2000xj

I have a pair of used rusty 6.5 inch leaf packs and one of the leafs fans out when I pick it up should I get new clamps or will they be ok with the weight of the jeep on them?

dukie564

get new retaining clips. fanning out = BAD

sj2000xj

Thanks dukie

XJmotard

Dang dukie u know everything lol...glad we have someone like u in the forum....here's a question so the rattle I had was the flex plate bolts. But my MAP sensor starting acting up today and I bought a new one to put in, cause the shop wanted to charge 175 for it and labor..figured it can't be to hard to do myself...but to make me feel better has anyone changed one and how hard is it? I gotta 96 to if that means anything...thanks in advance

dukie564

i know, i'm my own worst enemy lol


you sure it was the actual sensor? a lot of times it's the vacuum hose

...but i digress

Just unplug the electrical connector and vacuum hose, unbolt the bracket, swap the bracket if needed, rebolt it to the firewall, plug everything back in.