philthy

make dam sure they use the updated valve springs when they do the valve job
for that year since there was a issue of the springs not being strong
enough to knock of the carbon build up off the valves causing a misfire
code issue there is a tsb on this issue

Jeff wrote:

> My 1998 Jeep Cherokee L6 4.0L started missing badly the other day, so I
>
> checked the codes and got the following: 300 (random misfire), 301
> (miss on #1), 303 (miss on #3), 304 (miss on #4).
> So I took it to my local shop and rode my bicycle home. This morning I
> got a call from the mechanic, and he says that the issue is a blown
> head gasket, and mentioned that "sometimes these have a cracked head
> too." He also reccomends a valve job as it has 145,000 miles on it.
> I'm wondering what to do here. I like the vehicle, but I probably
> should have traded it in for another one 20,000 miles ago.
> They are quoting me $1400+ for the gasket replacement (and I think that
>
> includes a $350 valve job.)
>
> Questions:
> What are prices that people have experienced on this job?
> Is a cracked head really likely on this?
> I am fairly mechanically inclined, can I fix this myself?
> How long would it take to fix myself?

philthy

make dam sure they use the updated valve springs when they do the valve job
for that year since there was a issue of the springs not being strong
enough to knock of the carbon build up off the valves causing a misfire
code issue there is a tsb on this issue

Jeff wrote:

> My 1998 Jeep Cherokee L6 4.0L started missing badly the other day, so I
>
> checked the codes and got the following: 300 (random misfire), 301
> (miss on #1), 303 (miss on #3), 304 (miss on #4).
> So I took it to my local shop and rode my bicycle home. This morning I
> got a call from the mechanic, and he says that the issue is a blown
> head gasket, and mentioned that "sometimes these have a cracked head
> too." He also reccomends a valve job as it has 145,000 miles on it.
> I'm wondering what to do here. I like the vehicle, but I probably
> should have traded it in for another one 20,000 miles ago.
> They are quoting me $1400+ for the gasket replacement (and I think that
>
> includes a $350 valve job.)
>
> Questions:
> What are prices that people have experienced on this job?
> Is a cracked head really likely on this?
> I am fairly mechanically inclined, can I fix this myself?
> How long would it take to fix myself?