GMC Jimmy Questions

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Hi I have a 1997 Gmc Jimmy that’s overheating. When starting the truck it takes longer for it to heat up but when driving a small distance it gets all the way up to 260 degrees and drives fine. It doesnt appear to have any issues driving, no smoke, it does show some power loss but it does have 219,000 miles on it. Idk if it’s a coolant leak or not. I put antifreeze in it yesterday when it started over heating. There is still antifreeze in it and iy didnt appear to help anything.
fairly new radiator, new thermostat, full of antifreeze
ok when my abs comes on the dash I have no power windows or no heating or blower and the back wipers don"t go on ether but when the abs goes off everything comes back on and I can still drive the jimmy 1997 4wdr the fuses are fine
What seems to make the problem better or worse? it does not matter
I have no spark. It was running fine, shut it down for about an hour and suddenly no spark to plugs. Check the coil no spark there. Changed the coil and still nothing. Turns over just fine? Where do I go from here?
What seems to make the problem better or worse? Also has new plugs and wires
Output from map sensor is 4.8 at sensor and at computer connector scanner showes 2.4 volts from sensor
4 wheel drive doesn't work
I discovered this when I was checking my oil. is this a sign that my fuel pump is bad
Ignition switch will not turn all the way off and let me take my key out. when the service engine light goes off my car starts running good and lets me turn my ignition switch off and take my key out. what could be causing this please help
Shouldn't I get it towed
i rebuilt engine 40,000 miles ago replaced all sensors except egr and o2 sensors jimmy was running great! had a little roadrage 1 day on yhe highway and slamed it to the floor it didnot hesatate at all it rolled to 100mph very quick!about 3000 miles ago it started cutting out whn i step on the gas codes-po122 po102po118 p1406 so replaced egr no change i have noticed black carbon ring around tailpipe! plese help!i want my jimmy back
It runs at a high idle at all time never goes below a grand and a half I need to adjust it to where it is at or below a grand
My air conditioner doesn't blow cold. I need to add freon! WHERE does it go?
I have a 97 GMC Jimmy it will start and run fine and park or neutral but when I go to put it in gear reverse or drive it wants to die like it's not getting fuel it starts backfiring and cutting out I have replaced distributor cap and rotor new spark plugs new wires new fuel filter the only thing I have not replaced on it is the fuel pump could this just be a vacuum issue or something else these problems started a couple weeks ago any help I can get on this issue would be great thanks for your time and be safe y'all
Doesnt matter if the engine is cold or 200 degrees my idle in park is roughly 700rpm and feathering the gas peddle when putting it into gear seems to have no effect. Already replaced the idle air control valve even tried changing the TPS though I think the new one is bad as it idles at 1500rpm and the engine still stalls when putting into drive/reverse. Thus far no check engine light.
Truck seems to be running fine except for when I try to reverse
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