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2007 Hummer H3 Questions

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SHIFT INDICATOR LIGHTS WONT COME ON, CAUSING THE TRUCK NOT TO CRANK, PRIOR TO THAT IT WOULDN'T START UNLESS IN NEUTRAL , DOES THAT SOUND LIKE THE SHIFT SOLENOID GONE BAD
Temp shoes hot when driving on highway over 60
Had clutch fan replace, pump and flushed air conditioner . Still will show hit on guage
What seems to make the problem better or worse? Stop car and it will drop down on temp guage
How long have you had this problem? Bought it 30 days ago entire time
new coils,plugs thottle body still run funny at time what to do next? it is a hummer h3 2007 with 98.000 miles on it
What seems to make the problem better or worse? when its hot
How long have you had this problem? few days
I have had to replace door lock control on drivers side. Had tubes cleaned out cause leaking into sunroof. outside door Knobs that are stationary. Heater core replaced. Now sunroof leaking both sides, informed that color is wrong on passenger side back door.. I can't tell if it is, rubber trim is coming off.. Passenger side. Headlight is filling with water and points of the road. All info lights going off..check engine light on, told misfiring on several cylinders.. Took a few small problems..and probably loose lots of money to fix. Also back passenger door window switch just broke off on me.. So I know it wasn't miss handled. I also put in new trans.. Brand new from dealer was supposed to fix the misfiring.
Hummer H3X oil signal comes on at just about form of the car not moving forward.
I notice that this happens only in the summer time, and the car has been driven for at least 45 minutes. If it's cold there is no oil signal.
I changed the thermostat,oil sensor switch, and I have done a full oil and filter change to no avail.
Car is at 102k miles, Today I was told to use thicker oil (20-W50) in the summer and 10-W30 in winter (NYC).
Not sure what this would do.
Got new battery now my whipers come on every time I start my car
To get out and the call is ring constantly and then stops after I close door? Why is this? Is a light out some where in hummet?
Is opened why?
Driving on normal pavement
reduce power transaction. wait 5 minutes the same thing happen over and over again.
I've heard of a key problem with these cars. Any ideas?
if so is there someplace that tells me exactly what I need to buy to replace these 2 pieces? is there a you tube video showing exactly what to do?
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