Ticking for valve cover

CodyJames · Dec 11, 2010

I recently overheated my 2001 4L XJ reaaly bad, to the point it was knocking bad as I was trying to pull over. Well I got under the hood and saw my thermostat housing was cracked in half and leaking bad. I bought a new thermostat, housing and gasket and put it on along with some fluids. Well now something in the valve cover closest to the fire wall, I think #1 Cylinder?, is making a tick.tick.tick.tick.tick sound. What did I do? What does this mean?

CodyJames · Dec 11, 2010

Could it be the exguast manifold going bad and ticking? Smoke or steam has been coming form somewhere but I think its just from me spilling and burping coolant.

birchlakeXJ · Dec 11, 2010

Another thing to watch out for with an overheated 2001 is a cracked cylinder head.

The 01 came from the factory with the "infamous" 0331 head, which has a casting defect and is prone to cracking between cylinders 3-4, ESPECIALLY after an overheat.

By far, the #1 clue to this is when you see the level of coolant in your coolant reservoir dropping without a leak.

You need to watch your coolant reservoir like a HAWK, until you get a bunch more miles on this and can build up some confidence that your head is okay.

CodyJames · Dec 13, 2010

birchlakeXJ said:
Another thing to watch out for with an overheated 2001 is a cracked cylinder head.

The 01 came from the factory with the "infamous" 0331 head, which has a casting defect and is prone to cracking between cylinders 3-4, ESPECIALLY after an overheat.

By far, the #1 clue to this is when you see the level of coolant in your coolant reservoir dropping without a leak.

You need to watch your coolant reservoir like a HAWK, until you get a bunch more miles on this and can build up some confidence that your head is okay.

Alright I will. I just got it flushed. I put in a new thermosat 195F. New Battery and plugs and it runs great. After the overheat I acted like the timing was realy off or it was running on two cylinders. After I disconected the battery it ran fine. But now it does not run at 210 it runs one-one and a half marks below the 210. Heater has never worked even with flush.

Ticking for valve cover

CodyJames

NAXJA Forum User

CodyJames

NAXJA Forum User

birchlakeXJ

NAXJA Forum User

CodyJames

NAXJA Forum User

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