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    99 Tahoe 4x4 2dr Base, off road w/ABS problem RESOLVED by pulling fuse

    My K2500 didn't have any frt. wheel speed sensors when I got it, still doesn't have any and I've been driving it for a long time like that.
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    99 Tahoe 4x4 2dr Base, off road w/ABS problem RESOLVED by pulling fuse

    FWIW my Tahoe has the differential gear noise also. It did have bad bearings so when I pulled it apart I replaced every bearing and seal, gear noise is still there. If I get excited I might buy a set of gears but for now it's fine. You've got a few years on me and I think about how the heck I'm...
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    99 Tahoe 4x4 2dr Base, off road w/ABS problem RESOLVED by pulling fuse

    From my experience front sensors build up rust under them. removing the sensors and cleaning the mounts does the trick sometimes. Front hubs are the other problem as the bearings wear there is play causing erratic readings between the wheels causing the ABS to react. Never replaced a module for...
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    Tahoe not starting

    Guessing will get you nowhere. Check fuel pressure first. Of course we have no idea of the condition of this vehicle or how well maintained it is. Unplugging things will just set codes and break connectors.
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    99 Tahoe Basic 4x4 5.7 dies suddenly RESOLVED

    A hack if a vehicle quits and you don't hear the pump run...have someone cycle the key while you whack on the tank or skidplate. Sometimes the vibration is enough to get the pump to run enough to get home. Same principal as whacking a starter when it won't run. It jars the armature/brushes...
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    99 Tahoe Basic 4x4 5.7 dies suddenly RESOLVED

    Need first to listen if the pump cycles on when you turn the key to the on position. If it does the next step is a fuel pressure test. If it doesn't then the next step is to check the wiring/relay and the trigger for the relay.
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    Kind of strange thing happened. 95 Yukon backfire and lost power.

    I get a lot of satisfaction helping people that help themselves.
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    Kind of strange thing happened. 95 Yukon backfire and lost power.

    249k? What do I get if I guess correctly? Star with all of the basics and go from there. Does the CEL work? Did it come on and any codes stored?
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    99 tahoe electrical gremlins

    How did it run before anyone working on it? If it was OK then undo the human intervention whatever that was.
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    Blower wheel issues

    Pulling the blower motor is simple. Good chance you have leaves, mouse nest or something else in the housing blocking air flow, pull the motor.
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    Mystery Wires

    I don't understand problems people have with brakes on these vehicles. I was a dealer tech when they were new, worked on a lot at my own shop and own a few and have done a lot of brake work over the years. I've never had a problem bleeding them no different then I did on 1960's and 70's...
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    Transfer Case Issue (Solved!)

    Turn the key on and push buttons and listen for the sound of it engaging/disengaging. Put the shifter in neutral and roll the truck a little. If no sound put it in park and have someone push the buttons and tap LIGHTLY on the motor and listen. I don't think a scanner will activate the transfer...
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    Mystery Wires

    I looked at our 97 Tahoe and the yellow connector goes from the frt. harness to another yellow connector from the main through firewall harness.
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    Mystery Wires

    The blue and orange are most likely the power and brake signal leads for the trailer connector. Blue would go to a brake controller if you install one and the orange to the fuse block stud for aux power. Be sure it's fused.
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    5V reference. What's ok?

    Never trust what anyone tells you! IAC counts should have been way off usually first clue.
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    5V reference. What's ok?

    Has anyone pulled the throttle body and replaced the gasket and cleaned the ports?
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    Excessive heat

    System wasn't the best on the day they were new. Not worth the trouble and like I said PU's never had the valve.
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    Excessive heat

    !997 Tahoe when my valve leaked I installed it in the garbage can and just ran 2 heater hoses, AC works fine. My PU never had a valve and AC works fine. If you're worried about max AC put a manual valve inline and shut the water in the summer.
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    Won't start/start

    We could all guess all day long, not going to fix anything. Or you could start with some simple diagnosis when it doesn't start. Of course we all assume it's a low mileage well maintained truck that has no pre-existing conditions and no codes stored. I'd start with a spark test and fuel pressure...
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    Gas Gauge Issue

    From your diagnosis I'd say it's time to drop the tank and have a look see. I'm old and have CRS but I do remember a tank I dropped had a plastic baffle come loose in the tank, can't remember if it was a Tahoe or a PU. I can't remember if those tanks have a baffle, do you know if the tank has...
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    Coolant type

    Pull the block plugs and drain everything. Use whatever cheap antifreeze you want after that. I've been using whatever is cheapest at Walmart for decades with no problems. Before doing all of this did you pressure check and make sure you don't have any leaks before starting.
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    [SOLVED] 99 Chevy Tahoe 5.7 misfire

    All of these trucks are usually pretty worn out by now. Have to start with the very basics. Valves wear, valve guides wear and valve springs break, along with cylinder wear. These engines were set up very loose from the factory, very common to have piston knock on a cold engine.
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    SOLVED Hyper flash/Directional staying on

    I would remove, clean and reinstall ALL Grounds. After 30 years there is probably some resistance in the ground circuit.
  24. E

    [SOLVED] 99 Chevy Tahoe 5.7 misfire

    Compression test? Pull distributor and look at the gear, probably just as well to replace the distributor if it's plastic and an ear is stripped like most.
  25. E

    Tips for maximizing fuel economy

    We're dealing with 30 yo dinosaurs that weigh 2 tons+ with big tires and 4wd in most cases. On these old Vortecs I'd say one thing few check or adjust is the distributor offset and replacing the distributor gear or the whole worn out plastic distributor.

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