2004 GMC Yukon - Answered Questions & Fixed issues

Question edited for clarity. Question moved to model category. Did you disconnect the battery when you did the fuel pump? Did you reset the alarm and engine immobilizer? Did you check for Diagnostic Trouble Codes?

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If there is no other adjustment available for the cable, It sounds like your cable is stretched. It happens after years on older vehicles. While you can do things to make it tight, it probably would be better to replace it with a new cable. I found some on eBay for just over 20.00 up to around 50.00 each that are supposed to fit the Yukon. Old stretched cables can snap/break allowing the vehicle to roll.Parking Brake Cable For Select 00-06 Cadillac Chevrolet GMC Models 1479-02742 (Fits: 2004 GMC Yukon)Autopart International 1479-02742 Multiple US LocationsBrand New$21.99Save up to 25% when you buy moreList price: Previous Price$27.99??21% offBuy It NowFree shipping

changing your denali awd to reg is more about the electronics than the trans swap out --you ll need the harness --switches and reprogram/flash the computers --mounts--cross members and other brackets and such ----oin one of the many forums like tahoe--yukon etc this is one of a few on the subject --------https://www.performancetrucks.net/forums/gm-drivetrain-suspension-22/denali-awd-conversion-4wd-482852/--

It is the control module on top of the windshield wiper motor. The multifunction switch provides a specific DC voltage to the control module for each delay and speed.

Further testing would be necessary to determine the cause.

See first half of following video for access to the motor.

https://youtu.be/RvXltkEfHOw

check the instrument panel fuse. when the vehicle is completely turn off and timed out. mine will draw about 200mA of current... I suspect the IP has fractured solder joints from GM using lead free solder, it does not hold up to vibration well at all. right now i'm removing the fuse when off... reflowing solder connections with real tin lead solder... so far I got my transmission indicator lights.

You need to hook up a scanner to be sure that the computer is sending the information to the transmission to go into reverse.

fixya doesnt do physical repairs / replacements or give estimates on jobs ----trans replacement in ny at a dealer 100,000 mile warranty on an 08 xl was $3000 call around to get estimates in your area

The controller could be bad but I would probe the related wiring first. From your symptoms it sounds like something can not handle the electrical load. You turn the F/R seat heater on but then you turn on the F/L and the whole system fails. It does sound like the source of the problem will be under the drivers seat. Testing needs to be performed to confirm and identify the source. Both seats share the same fuse and ground. This circuit may have a damaged wire or connector somewhere. Inspect and test as much as you can. Also look underneath the seats for anything. Customers are not aware that personal belongings and trash get pushed underneath the seats and will damage wiring. Also excessively moving the seat forward and back will weaken the harness over time. Please write back and let me know what you need. If it is more diagnostic information or suggestions just let me know. Good Luck

It unbolts from the bottom of chassis.

What engine , gas or diesel ?

The control module for that is 400 dollars and the switch is 110.

It is not necessarily the flow of gas that is important. You need at least 40 pounds of pressure for the injectors to operate correctly.

Use the standard troubleshooting steps at the link below. Do It Yourself Diagnosis and Repair

possible needs power steering fluid needed. or also a possible clog. hope it a quick fix.

remove your radio and check output on the i,cs

It should be on the inside of the rail on the drivers side, near the back of the engine, front of transmission. If it is not there it may not have one.

My 02 trailblazer pulled that stuff on me. Finally disconnected both battery posts, touched together for 60 seconds. Pulled both PCM fuses together, reinstalled, reconnected the battery and started fine. Gremlins at play I guess.

Have you checked the fuel filter by chance?

Is it properly charged? A check of the pressures would be a place to look next.