revsxj

99 cherokee 4.0 auto
just swapped motor sat and idled fine. started driving lost all guages then stalled. ran hot lower rad hose kept sucking in wouldnt relieve pressure. no clue whats going on need help

kjc

I think there should be a spring inside that lower radiator hose to prevent it from collapsing..

revsxj

will that fix my issue? i ran it with the rad cap off and it didnt collapse at all? im cluesless this is 3 days of a motor change idled fine for 30 min drove 10 and boom overheating and everything is new from the thermostat to the rad

Slick761

Finally! The collapsing lower hose! Been waiting and waiting and waiting! Either you need a spring or a new hose. Won't do it with the cap off. Usually new hoses won't do it. I think you should be able to get the spring in like the help section. I want to broadcaster this! All those people who said Ahhhhh that NEVER happens :-)

revsxj

lol so you saying a new hose will fix this? lol

Slick761

Ya it should. Get a quality hose and it should be good.

revsxj

do you think thats my only issue tho? also why would my guages quit working? anyone

Slick761

They don't come on when you turn the key?

revsxj

the warning lights come on and the turn signals when the lights are off but when lights are on the blinkers dont work. also the gas, volt, oil pressure, and temp and mph, and tach dont work.

Slick761

.... Hmmm ... Somethings shorting. You have an aftermarket stereo?

revsxj

that i do but i didnt mess with it at all...

Slick761

I don't know bud I'm not that familiar with the late guages. It sounds like a ground thing and is be tempted to eliminate the switch first..... I've seen stereos knock the dash lighting off line and do some screwy things too. It's difficult for me to diagnose wiring without being there.

Gorillaxj

since you just swapped the motor I would look over everything you just did, check the grounds, and wiring to the engine and ecu to start, also any connectors you where unplugging.

revsxj

checked everything cleaned everything. no clue. is there a ground that runs from dash (guages) to anywhere? i cant find any......also what are the grounds on the block under the coil for?

rand4x4

Did you trun on heater when you filled it back up, May have air pockets if you did not.