I have 2006 gmc Sierra sle 4x4. How can I get from hesitating and surging when stepping on the gas

5

Asked by Oct 06, 2013 at 12:18 AM about the 2006 GMC Sierra 1500HD SLE1 4dr Crew Cab 4WD SB

Question type: Maintenance & Repair

I have replaced the wires and plug and check engine light has not come on.  I put ona
code machine. It said the mass sen. Was bad so I placed it run like a new truck.  Then
the check engine came on for the first time, now it is run ragged again.  I reset the check
engines light. It runabout 5 miles down the road and it is on again. Code po101 & po171.
What do I need do need to do next.

2 Answers

yes...those are codes for MAFand after combustion levels...I'm inclined to blame the TPS, engine temperature and IAT sensors~you might check the output and replace each of these sensors...The EGR may be bugged up with carbon too....the fuel pump may have it's vacuum source impeded or diaphragm torn so as to not deliver the correct pressure~

I'm having the same problem with my 2006 GMC Sierra 1500HD 6.0 litre. It lags when I try to give it power then it will respond and everything will be normal and it's fine a highway speeds. I cut my cats off because I had hoped it was the problem but it wasn't now I have codes for those but also my o2 sensors because everything it's accurately reading. I've come to the conclusion that it's a possible intake leak or gummed up exhaust system because it runs better when you try to accelerate and give it more power because I changed the MAF and that didn't solve anything. Only other could be the fuel pump but if it's that it should stop and not work.

Your Answer

GMC Sierra 1500HD Experts

  • #1
    schalk
    Reputation
    40
  • #1
    sg73
    Reputation
    40
  • #1
    reverend1735
    Reputation
    40
View All

Related Models For Sale

Used GMC Sierra 1500
790 Great Deals out of 68,287 listings starting at $1,350
Used GMC Sierra 2500HD
100 Great Deals out of 13,281 listings starting at $4,450
Used Chevrolet Silverado 1500
2,134 Great Deals out of 183,037 listings starting at $1,898
Used Ford F-150
2,235 Great Deals out of 183,025 listings starting at $1,500
Used Chevrolet Silverado 1500HD
7 Great Deals out of 263 listings starting at $4,500
Used Chevrolet Silverado 2500HD
320 Great Deals out of 29,162 listings starting at $2,650
Used Toyota Tundra
444 Great Deals out of 33,909 listings starting at $1,999
Used Dodge Ram 1500
412 Great Deals out of 10,667 listings starting at $1,500
Used GMC Sierra 2500
155 listings starting at $4,950
Used Ford F-250 Super Duty
357 Great Deals out of 43,715 listings starting at $1,250
Used GMC Yukon
418 Great Deals out of 21,028 listings starting at $1,495
Used Toyota Tacoma
569 Great Deals out of 42,379 listings starting at $2,999
Used Dodge Ram 2500
151 Great Deals out of 5,094 listings starting at $2,999
Used Chevrolet Silverado 2500
6 Great Deals out of 246 listings starting at $3,995

Used Cars For Sale

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.