trainer7

one very cold morning driving to work jeep shoots all coolant out and i pull off and turns out radiator cap shot off. so...changed thermostats figured it was bad put new coolant in it.... fired up but was running sluggish and check engine light came on.... so took thermostat off went exchanged for new one and same... its not popping open to allow to circulate from head to upper radiator hose...... so... changed out water pump and sadly same thing.... now took off thermostat to see if will flow and its not building much pressure after 15-20 mins of being started and also it only itles sometimes.... for most part just putters off i have to keep foot on gas barley to keep running ....no white smoke to coolant coming out tail pipe nothing ..what do you guys think??....

VTJeep

could be a replacement part was faulty. it happens. does heat work well? could be a heater core plug, or radiator plug, or a line. how well have you flushed/back flushed your system?

trainer7

ya heater works just checked that today.. and i had all hoses off and including water pump is that enough to flush it? and the radiator is like yr old.. its driving me crazy

VTJeep

as far as i know, the HC is the only thing that need to bee back flushed, but you said heat works... as previously stated, poss. a faulty replacement part... what year?

trainer7

its a 94.. and ya heater is working great...

VTJeep

so its deff. not a head gasket issue... um... i hope... my roommate has had a hell of a time with her car, and so far the source of all the frustrations were traced back to the head gasket. got entire engine replaced by the company that sold the car, only to have more head gasket issues. so idk? im stretching for answers...

trainer7

ya man thanks for the help my buddy has a mec shop and he gonna put it on his computer and see whats up... maybe will just give me excuse to pull the engine and stroke it haha

VTJeep

when i doubt, stroke it? well, it work for most situations, might just work here! good luck dude.

trainer7

haha exactly ..thanks bud!

tjwalker

1. You said a check engine light came on. WHENEVER this happens, you must pull the stored code for codes/guidance. Use your Jeep's OBD technology.

2. Running a compression test would not be a bad idea here. An overheat can toast a head gasket. Low compression on two adjacent cylinders would indicate a bad head gasket.

trainer7

Thanks man that will be next thing I do!!