I have 2006 gmc Sierra sle 4x4. How can I get from hesitating and surging when stepping on the gas
5

Asked by James 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

operator_13 answered 11 years ago

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~

Mark helpful

Dillon answered 9 years ago

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.

Mark helpful

Your Answer:

Related Questions

Shortcuts

Search GMC Sierra 1500HD Questions

CarGurus Experts

  • #1
    sg73
    Reputation
    50
  • #2
    schalk diedericks
    Reputation
    40
  • #2
    TransAm77
    Reputation
    40
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used GMC Sierra 1500
120 Great Deals out of 6,429 listings starting at $3,975
Used Chevrolet Silverado 1500
155 Great Deals out of 5,874 listings starting at $2,975
Used Ford F-150
296 Great Deals out of 12,402 listings starting at $1,712
Used GMC Sierra 2500HD
20 Great Deals out of 1,438 listings starting at $9,995
Used Chevrolet Silverado 2500HD
20 Great Deals out of 1,158 listings starting at $9,500
Used Ford F-250 Super Duty
15 Great Deals out of 1,092 listings starting at $8,995
Used Toyota Tundra
20 Great Deals out of 1,259 listings starting at $9,990
Used GMC Sierra 2500
1 listing
Used GMC Yukon
13 Great Deals out of 840 listings starting at $4,894
Used GMC Sierra 3500HD
5 Great Deals out of 1,270 listings starting at $12,995
Used Chevrolet Silverado 1500HD
2 listings starting at $9,240

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. Content will be removed if CarGurus becomes aware that it violates our policies.