2003 GMC Yukon XL - Page 7 - Answered Questions & Fixed issues


The car shuts down completely or the throttle response is slow or bad?

2003 GMC Yukon... | Answered on Apr 04, 2013 | 30 views


you don have to do much to that gmc as long the coil is good, just replace all 8 spark plugs, air filter and basic oil and filter change; use good brands of oil, such as castro, mobile, shells ect. if your the original owner and have high miles and never have replace thermostat, I would go ahead and have it done, I would not wait until it fail and over heat on you. if you have done lot of pulling with your vehicle and have 75-100k mile, have your transmission flush with new filter, it will give the tanny life last a bit longer.

2003 GMC Yukon... | Answered on Feb 23, 2014 | 3,461 views


calipher just unbolts.. Might need a 1/2 inch breaker bar and I think a 21 or 22 mm socket.. There on quite tight.

2003 GMC Yukon... | Answered on Mar 19, 2013 | 285 views


I think you know that the solution is to part with it,
for a couple days, so it can be properly diagnosed &
all problems resolved

2003 GMC Yukon... | Answered on Mar 08, 2013 | 17 views


Try using metal coat hanger stretched out make hook on end to either hit lock switch or pull lock up good luck

2003 GMC Yukon... | Answered on Feb 21, 2013 | 149 views


When you touch the turn signal lever do you hear clicking noise befor u lift up or down if so then could be bad turn switch or just bad relay replace relay first if still doing it replace the switch get Haynes book to help with switch removal and install if relay don't fix it cause u will have to remove steering wheel etc to fix it if switch is bad

2003 GMC Yukon... | Answered on Feb 21, 2013 | 145 views


try keeping the gascap tight

2003 GMC Yukon... | Answered on Feb 20, 2013 | 1,266 views


If any of the windows work,it\'s not a fuse.
Either a motor or master switch in drivers door.
Might want to check the wiring at the drivers door and the body,
with the door open cut a slit in the rubber boot that goes to the body,
often times a wire will break there,due to the drivers door getting
used most,all of the window run thru this switch so there are quite
a few wires in the bundle.

2003 GMC Yukon... | Answered on Feb 17, 2013 | 19 views


I have the same truck, had the same problem. It was my oil filter adapter.

2003 GMC Yukon... | Answered on Feb 17, 2013 | 876 views


Condensation Drainage tube could be clogged.

2003 GMC Yukon... | Answered on Feb 17, 2013 | 421 views


check all the bulbs if they are all good then check where the wireing harnce plug in if these check good then you may have a brake in the printed circuit that is on the back of the cluster

2003 GMC Yukon... | Answered on Feb 16, 2013 | 19 views


misfire can be caused by a few things. weak spark, low fuel pressure, to much fuel, vaccum leak. a simple check on this engine is to remove vaccum line from fuel pressure regulator, on fuel rail, driver side of engine. if you crank engine, and fuel leaks out vaccum port on regulator, its ruptured and causing rich fuel mixture. try that and let me know.

2003 GMC Yukon... | Answered on Feb 14, 2013 | 134 views


The sensor and circuit would need to be tested.
The voltage signal back to the computer is below normal range.

2003 GMC Yukon... | Answered on Feb 13, 2013 | 148 views


contact dealer service for your model and see if they will print out a removeal process or go to a custom radio dealer who specializes in car stereo setups..

2003 GMC Yukon... | Answered on Feb 07, 2013 | 251 views


it is a common problem with all chevy trucks and cars. you need to replace the instrument cluster

2003 GMC Yukon... | Answered on Jan 28, 2013 | 25 views


either a ground wire is disconnected somewhere or timing belt broke,does the engine still turn over but not start or do you not have any power at all ?

2003 GMC Yukon... | Answered on Jan 16, 2013 | 170 views


{: ) Do you mean cover under warranty or something? I don't think so. They can only help you deal with the problem if you decide to bring for repairs.

2003 GMC Yukon... | Answered on Dec 29, 2012 | 221 views


Brake rotor and front or rear?

Okay, remove the wheel then remove the brake caliper and move to side do not allow to hang on the brake hose, use a hook to hang off spring or set aside. next remove the caliper bracket, two bolts at rear of bracket to remove it.
next you will use a hammer to remove the rotor.

NOTE: the way the brake rotor was designed was a bad one the hub in which the rotor slides over and the wheel studs slide into holes on the rotor is bad the hub diameter is almost the same size as the diameter of the seat of the rotor that slide over the hub and what happens is sometimes the rust build up on the rotor seat locks the brake rotor on the hub. i do not know if you are reusing the rotors or replacing them, no sure what job you are doing . the rotors to take off you will need to tap on the rear of them with a little force and turn, hit and turn. you will need to see if they break free or if hard beating and spraying into the rear of them is needed with wd40.
Alot of these rotors also have two threaded hole on the face of the rotor near the studs so that you can screw two bolts into holes to help pull them. use wire to tie caliper up and also use a c-clamp to push piston into calipe to remove caliper if needed, Do not remove brake hose, there is no need to open system, here is a picture of the rotor coming of the hub, also there may be clips on the stud holding rotor on remove them use cutters or pry off do not need to reuse , they are to help in holding the rotor on during asm, if you want you can buy them and reinstall them but never reuse them.12_25_2012_5_41_09_pm.png

2003 GMC Yukon... | Answered on Dec 25, 2012 | 277 views


Someone will need to figure out if you are lacking fuel to the injectors or spark to the plugs to proceed.
You say the pump is fine, have you checked the fuel pressure, and do you know if the injectors are getting voltage and ground pulse from the computer ?

2003 GMC Yukon... | Answered on Dec 11, 2012 | 266 views


It could be the result of a bad valve lifter. You should take it to a reputable shop to get it checked out. ----------------------------------------------------------------------------------
Renault diagnostic tool

2003 GMC Yukon... | Answered on Dec 10, 2012 | 93 views

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