jeep over heated and wont start
kwilson88
09-19-2008, 10:40 AM
so just a few days ago i bought a 1999 jeep Cherokee
the man that sold it to me warned me of over heating issues
that it was his fathers and hadn't been serviced for some time
i figured if i flushed the radiator and changed the oil it would be at least good enough to drive. later on i would be switching parts from my 1997 jeep to make one solid "super jeep" including the manual trans ( i hate automatic)
but any how i had to drive it home about 30 miles, the roads where rather hilly and i was going around 50-60 mph, once i hit the interstate for the last stretch (in retro spec i should of taken it easier on the poor girl but i beat on my 1997 with little issue so i figured 70ish wouldn't hurt) well the entire trip the temp gage was about 260 and i could smell some thing foul, over heating i know but it seemed fine and the temp gage was going down (prob due to the air flow) on the interstate. it started making some weird noise when i let off the gas but they went a way when i accelerated. finally i got to my exit and slowed down and got off. my engine shut off and a smoke/ steam started pouring out of my engine block. well my buddy was there so we pushed it to a near by parking lot to try to remedy the issue
we went to go get some food/ wait for it to cool down.
once the engine was cooler i tried to start it again.
the engine would turn but it was slow, any way it wouldn't start.
me thinks its the thermostat or a sensor also my radiaor has some really nasty fluid in it, which may be part of the issue there. but i would at least like to get the thing to start ... that would be nice
any how if any one has some ideas it would be greatly apreciated
the man that sold it to me warned me of over heating issues
that it was his fathers and hadn't been serviced for some time
i figured if i flushed the radiator and changed the oil it would be at least good enough to drive. later on i would be switching parts from my 1997 jeep to make one solid "super jeep" including the manual trans ( i hate automatic)
but any how i had to drive it home about 30 miles, the roads where rather hilly and i was going around 50-60 mph, once i hit the interstate for the last stretch (in retro spec i should of taken it easier on the poor girl but i beat on my 1997 with little issue so i figured 70ish wouldn't hurt) well the entire trip the temp gage was about 260 and i could smell some thing foul, over heating i know but it seemed fine and the temp gage was going down (prob due to the air flow) on the interstate. it started making some weird noise when i let off the gas but they went a way when i accelerated. finally i got to my exit and slowed down and got off. my engine shut off and a smoke/ steam started pouring out of my engine block. well my buddy was there so we pushed it to a near by parking lot to try to remedy the issue
we went to go get some food/ wait for it to cool down.
once the engine was cooler i tried to start it again.
the engine would turn but it was slow, any way it wouldn't start.
me thinks its the thermostat or a sensor also my radiaor has some really nasty fluid in it, which may be part of the issue there. but i would at least like to get the thing to start ... that would be nice
any how if any one has some ideas it would be greatly apreciated
MagicRat
09-19-2008, 01:42 PM
ouch.
A couple of things........ your manual transmission may not work on an engine originally equipped with an automatic because the auto engine likely lacks a pilot bushing cavity on the rear of the crankshaft. A decent machine shop can drill one but usually the crankshaft has to be removed first.
As for the engine....... it does sound as if it was seizing up. Hard driving when the engine is overheating can do this. If it's brief, the engine will still function. However, you may find in this case the engine was driven too hard and fast when it was overheating and seizing and the pistons and cylinder walls are scored to hell.
IMO do a compression test, first 'dry' then 'wet' (pour a bit of engine oil in each cylinder for the test to be 'wet') If the results are almost the same, then you are okay. If the wet test is a lot higher, the engine is probably damaged.
A couple of things........ your manual transmission may not work on an engine originally equipped with an automatic because the auto engine likely lacks a pilot bushing cavity on the rear of the crankshaft. A decent machine shop can drill one but usually the crankshaft has to be removed first.
As for the engine....... it does sound as if it was seizing up. Hard driving when the engine is overheating can do this. If it's brief, the engine will still function. However, you may find in this case the engine was driven too hard and fast when it was overheating and seizing and the pistons and cylinder walls are scored to hell.
IMO do a compression test, first 'dry' then 'wet' (pour a bit of engine oil in each cylinder for the test to be 'wet') If the results are almost the same, then you are okay. If the wet test is a lot higher, the engine is probably damaged.
kwilson88
09-19-2008, 01:54 PM
well as for the pilot bushing cavity, is that some thing that is a part or is it built in to the engine block. i have 2 jeeps one manual and one not. i want to put most of the working of the manual in to the automatic. if it is some thing i can just add its not a problem, other wise i might be better off switching motors. this i might have to do if the automatic has shit the bed any way. gladly my standard appears to have a newer motor, time and money is now the factor.
as for the compression test could you explain a little bit more? i have never even heard of one so i am a little clueless
as for the compression test could you explain a little bit more? i have never even heard of one so i am a little clueless
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