1999 GMC Yukon Denali - Answered Questions & Fixed issues

broken knuckle at end of shaft - steering box failure --

Likely blew the fuel pump. I think it's in the tank. Check for dead short.

Your best bet , take it to a qualified repair shop !Your a parts changer ,you don't know how to diagnose the problem > Hooking up a scan tool , not a code reader an viewing scan data . 002 Fuel System Tests Start Here

The code you are talking about is not likely to keep the truck from starting. Is the truck turning over , getting fire to the plugs, fuel to the throttle body and injectors. P0135- Oxy Sensor Heater Circ (bank1, Sensor. Does the fuel pump run and is the fuel filter clear and not blocked. Can you spray fuel into the throttle body and get it to start. If the guy charged you $900 to change a sensor I would fire his but.

Sounds like the immobilizer system is preventing you starting it. This usually requires a main dealer to fix.

If you lay on your back on the drivers side floor and look at the brake pedal arm you should be able to see the brake light switch. You shouldn't have to remove anything to access it.

check to make sure you have the right amount of amp fuse in fuse box

Hi Barbara, Im AL the owner of Big As Auto Repair Barbara, it sound like you may have an actuator motor that is shorted, here how to check it. On the front axle you will see a motor assembly with wiring and connector. Unplug that connector and leave it off, then try to put it into 4 wheel drive. If it doesn't blow the fuse then you know its a shorted actuator motor. Hope this helps and please visit my auto-repair-website here: http://www.bigasautorepair.com/

try replacing battery in the keyfob

This vehicle will be equipped with a stabilizer bar. There is usually no steering damper shock on this model

Sounds like a problem with the ABS system, are there any warning lights on?

Have you changed the distributor cap

Did u change distcap..may be corroded inside. There r two sensors gettn low voltage. Sounds like the othr is not heating properly too. A data stream run at a private shop is really helpful

your anti theft device is activated,you need to lock and unlock your doors a couple times with the key fob,not the key,and then you need to put the key in the ignition and start it,if you dont have your key fob,call your car dealer to get a new one,they are programmed for each car only,you cannot bypass it.

check battery for enough cranking power, if battery is below 8 volts, your dash lights will work, but you wont have enough power to start the engine

Double check your starter wires. They might be flip flopped.

Well it all go's to fuse box. there one under the dash (maybe in glove conpartment) and then there's one under the hood. your manual should tell you where to look for the right fuses. gl

Maybe the thermostat is in the wrong way around or you have the wrong rotation water pump fitted.

I have an 02 Silverado. It has 4. Two upstream left and right bank, two downstream left and right bank.