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1999 GMC Yukon

Tiny
GADDIS02
  • MEMBER
  • 1999 GMC YUKON
Engine Performance problem
1999 GMC Yukon Engine Size unknown Two Wheel Drive Automatic 214000 miles

why does my yukon jerks on me when I go up a hill, I already change my oxygen sensor, (that what to auto man told to change), but it didnt help.
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Monday, March 10th, 2008 AT 3:44 PM

13 Replies

Tiny
RHALL77
  • MECHANIC
  • 3,361 POSTS
Did he say you were gettig a lean codition, was it a lean code? If that is the case it sounds like a vacuum leak with the intake. Or it could simply be a tune up. Try to spray water on the plug wire and see if it miss fires. If that is ok check the distrubitor cap for corrison and the same with the rotor. Let me know what happends.
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Monday, March 10th, 2008 AT 4:43 PM
Tiny
GADDIS02
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He just told me that the oxygen sensor where bad. I going to get it a tune up this friday.
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Tuesday, March 11th, 2008 AT 3:39 PM
Tiny
MASTERTECHTIM
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99 percent of the time a jerking or bucking going up a hill is cured by performing a complete tune up, cap rotor and wires and spark plugs. Let us know how you make out.
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Tuesday, March 11th, 2008 AT 5:03 PM
Tiny
GADDIS02
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I WILL, I WILL WRITE BACK THIS WEEKEND.
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Tuesday, March 11th, 2008 AT 7:38 PM
Tiny
GADDIS02
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I WILL, I WILL WRITE BACK THIS WEEKEND.[/Quote:7495941989]

I JUST CHECK MY OIL IN MY YUKON, I JUST GOT A OIL CHANGE JUST LIKE 2 WEEKS AGO. I HAD TO HAD SOME MORE OIL IN IT, IT DOES NOT LEAK OR SMOKE. WHAT IS WRONG WITH IT?
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Thursday, March 13th, 2008 AT 11:01 PM
Tiny
MASTERTECHTIM
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It probably was not filled properly when the oil change was done. Monitor it again in two weeks and get back to us
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Friday, March 14th, 2008 AT 5:29 PM
Tiny
GADDIS02
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[quote="gaddis02"]

Got a tune up today, drove with no problems no jerking or bucking, thank you for yall help.
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Wednesday, March 19th, 2008 AT 3:41 PM
Tiny
GADDIS02
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Got a tune up today, drove with no problems no jerking or bucking, thank you for yall help.
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Wednesday, March 19th, 2008 AT 8:03 PM
Tiny
GADDIS02
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  • 14 POSTS
My oil is low again, what should I do?

Stephen
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Sunday, March 23rd, 2008 AT 4:50 PM
Tiny
MASTERTECHTIM
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How low? Do you see any leaks under vehicle at all? Is it still running good?
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Sunday, March 23rd, 2008 AT 5:41 PM
Tiny
GADDIS02
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Just under the operation range line. Their is no leaks that I see I park in the same spot at work and their is no oil on the ground. It runs great! Also I had a wreck in it, I hit a deer, I already replace the parts for it. I think I might have to go to higher mileage oil, it have 215, 00 mile on it. Im using valvoline 10-30
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Sunday, March 23rd, 2008 AT 8:20 PM
Tiny
MASTERTECHTIM
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Sounds like a plan
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Monday, March 24th, 2008 AT 9:37 AM
Tiny
GADDIS02
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I will try that.

Stephen
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Monday, March 24th, 2008 AT 3:35 PM

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