20 Most Recent 1999 GMC Yukon - Page 3 Questions & Answers

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Need help. 1999 yukon first code was p 0304 now p 0305 help?

I have a Yukon and my crank sen was bad and it was running real bad before that..it runs good now but my steering to tight..
3/10/2015 12:02:08 PM • 1999 GMC Yukon • Answered on Mar 10, 2015
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How do I repair the blower switch on a 99 yukon

most likely blower resistor
3/4/2015 11:27:09 PM • 1999 GMC Yukon • Answered on Mar 04, 2015
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Blower motor resistor location on a 1999 gmc yukon

https://www.youtube.com/watch?v=gj4hw-HR3n4
3/1/2015 10:26:06 PM • 1999 GMC Yukon • Answered on Mar 01, 2015
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How is possible that my 99 yukon has no crankshaft position sensor?

if we are talking the 5.7L camshaft sensor is built intoto the distributor. It is replaceable. Crankshaft Sensor is located front of engine on bottom, right at the Harmonic Balancer. it is easily replaceable.
2/25/2015 4:42:38 PM • 1999 GMC Yukon • Answered on Feb 25, 2015
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Where is the crankshaft sensor located on my 99 GMC Yukon SLT?

crankshaft sensor is located at front of engine, behind harmonic balancer at bottom of engine.
2/25/2015 4:36:27 PM • 1999 GMC Yukon • Answered on Feb 25, 2015
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Signal lights work until i turn on headlights

Chances are that this is an issue with the multifunction Switch located in the steering column. This is the switch that the turn signal switch is in. seems most lighting for vehicle routes through this switch and can lead to frustrating lighting issues. You can get these on EBAY and Amazon for around 85 dollars.
2/25/2015 3:28:07 PM • 1999 GMC Yukon • Answered on Feb 25, 2015
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What do you use to check the wire for tailights

a non-powered test light with a grounding lead
2/25/2015 2:49:16 PM • 1999 GMC Yukon • Answered on Feb 25, 2015
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99 gmc yukon denali steering loose whining at high speed did the front end what else could it be

Did you check power sterring pump or gear box
2/21/2015 2:10:55 AM • 1999 GMC Yukon • Answered on Feb 21, 2015
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Have a 1999 GMC Yukon...can't get ignition key into the ignition

get new cylinder and keys
2/18/2015 3:07:17 AM • 1999 GMC Yukon • Answered on Feb 18, 2015
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Why would my 99 Yukon have antifreeze blow back in rear of truck

What do you mean "antifreeze is blowing in the back of the truck", that is not clear at all. I’m happy to assist further over the phone at https://www.6ya.com/expert/josh_8f8ad0a8f7e0e6d3
2/18/2015 2:59:35 AM • 1999 GMC Yukon • Answered on Feb 18, 2015
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Do the 99 Yukon have a rear heater core

Good question for parts department at dealer! Just give them the vin# and they will tell you!
2/10/2015 2:14:24 PM • 1999 GMC Yukon • Answered on Feb 10, 2015
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Where is the oxygen sensor located on a 1999 GMC Yukon with a 350.

You have four O2 sensors in your vehicle. Bank 1 and Bank 2. Typically it is Bank One, sensor Two that goes out from minor oil leaks on your engine. Here are a couple diagrams. Lay down behind your right front tire and look up. Look for cracked wires or burnt areas by connection. You can't always tell by looking. Easy to replace and fairly cheap. 25406914-4j4lxd2esptoqn3kkrhz2ses-2-0.jpg
2/8/2015 10:37:40 PM • 1999 GMC Yukon • Answered on Feb 08, 2015
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Signal fuses blowing

sounds like you have a short some place..
2/4/2015 1:03:58 AM • 1999 GMC Yukon • Answered on Feb 04, 2015
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Where is the turn signal relay flasher located

If you now a mechanic you could just ask if he knows where it is. Most vehicles that I have changed them are up inside the dash not far from the steering column . not sure about yours.
2/4/2015 1:01:35 AM • 1999 GMC Yukon • Answered on Feb 04, 2015
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I have 1993 gmc sierra c2500 3/4ton 350 5.7L,i have good running lights but my brake lights and turning lights dont work i have check the brake light switch,bulbs and when i check the fuse it was bad

Yup, you have a dead short in the wiring, most likely the wire coating has rubbed through and the wire is touching the frame somewhere...I'd check first from the box back, and look for where someone installed a trailer plug, and got the wiring wrong...
1/1/2015 7:12:32 PM • 1999 GMC Yukon • Answered on Jan 01, 2015
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Code p1351 came up after changing the battery. but the truck wont start still. what should i do next?

Ok so u charged the battery with out removing the negative cable and you heated up your ignition module. Ok lets start with checking if you have spark coming out of your distributor either by the removing a spark plug and grounding with a screwdriver or from the cap. If you have a good solid spark then it is not electrical if you do not have any spark then lets check the fuel and see if your fuel pump is working and had pressure. Also I want you to check all the fuses not just for fuel especially the one for the ECM. then we move up the ladder from there, ok. Good luck.
12/31/2014 6:37:58 AM • 1999 GMC Yukon • Answered on Dec 31, 2014
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Ihave 1999 gmc yukon 5.7 vortex when starting crank up run then cut off what could be problem

This problem you are having sounds like a crankshaft sensor going bad. Do you have a check engine light on, in your dash? Have your computer scanned, and cars computer will tell you what the problem is. GOOD LUCK FRIEND.
12/3/2014 6:00:23 AM • 1999 GMC Yukon • Answered on Dec 03, 2014
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