"PeterD" <peter2@[EMAIL PROTECTED]
> wrote in message
news:kkfe04le0u8ta8pr1lq0e7ld9g2v0d6dl2@[EMAIL PROTECTED]
> On Wed, 16 Apr 2008 23:34:08 -0400, "Noah" <n_o_a_h_2000@[EMAIL PROTECTED]
>
> wrote:
>
>>1999 Cherokee Laredo. 4.0 engine. 120000 miles. We've only has this
>>thing
>>for a few months.
>>
>>First - pretty sure the head gasket is blown. There's oil in the
coolant.
>>The oil is not contaminated and there has been no loss of coolant. I
>>can't
>>think of anything else that might have contaminated the coolant.
>>
>>What got me looking around was when I went to change the oil, the
plastic
>>cap popped right off in my hand. The threaded ****tion is melted into
the
>>inlet on the valve cover. We never noticed it running hot and I last
>>checked the coolant about two months ago. I pulled the valve cover off
&
>>luckily nothing got into the motor.
>>
>>Could the cover have melted becuase of a blown head gasket?
>>
>>Thanks!
>
> You say you 'just got' this vehicle. I'd suspect that the original
> (previous) owner seriously overheated the engine. (Probably why he
> sold it...)
>
> Were this my Jeep, I'd flush the coolant, and run it for a while and
> see if there is additional oil getting into it. You may have simply a
> case that the previous owner accidently put oil into the cooling
> system by mistake, but that's hard to say.
>
> Next time you buy a used vehicle, have it inspected by a good mechanic
> who would have spotted these problems. <sg>
I'm a decent mechanic and I did check it out. Nice green coolant when I
bought it, nothing suspicious in the overflow tank.
Any chance this is tranny filud in the coolant? Seems strange that there
is
no coolant in the crankcase.
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