I have a 2005 Chevy 1500 Silverado, 5.3 Flex. 20,000 miles.About two months ago, my check engine light came on. Went to the parts store and found out it was the mass air sensor, and changed it out with exact OEM part. The truck still struggles going uphill, trans seems to be shifting properly. Could it be another sensor, gas filter, etc? It just seems the engine is struggling. I have always used pure gasoline, not flex fuel.

140

Asked by Feb 23, 2013 at 02:49 PM about the 2005 Chevrolet Silverado 1500

Question type: Maintenance & Repair

12 Answers

299,645

Is your check engine light still on? Sometime those codes pinpoint which sensor is detecting the problem, but it isn't always that sensor. Did you clear the code after reinstall or disconnect the battery to clear everything? When replacing sensors it's always good to remove the negative battery cable to clear the memory. You also could have some misfires, meaning you need to replace a coil. Give us some more details.

2 people found this helpful.

whatever caused the MAF to stop responding (these have rare earth metals, and are pricey) the first fail also was the reason for the second fail. The egr should divert air on a circuit that the MAF doesn't see....perhaps some stuck or disconnected bit of hose plumbing is causing failures. things do not seem right in denmark, for something that's so new. Must be something really small and silly!

1 people found this helpful.

the beloved EGR is cause for unseen badness in performance-

140

The check engine light is off, never came on again. I haven't disconnected the battery to reset. I was on rough rocky road a week before this started. The connector to the MAS was tight. It doesn't feel like I have a mis, no rough running. Bob, that's what I was thinking, something is disconnected. I looked but can't see anything. I'll give it another try and disconneted the battery. Any suggestions where to look, vacuum line, connector?

4 people found this helpful.

look for a diconnected vacuum line, this would explain everything~

2 people found this helpful.

look for something that isn't working right. test stuff if you can by removing to see if vacuum or pressure IS on the spot, or get one of these suction/gauge devices where you can apply suction to see if a device is doing it's job...these are quite useful- but the check engine light will reveal what needs attention. You could go at it "commando" and test everything like a madman, but it's best to have a little intelligence behind your tests- I can look to see your vacuum diagram to make an educated guess-

god forbid a choked catalytic converter...now why might this happen? Something in the computer told it to run rich, and now we've got a hot converter because some of the energy of the gasoline is firing off in your exhaust, in the Catalytic converter! gotta make it run right before replacing the cat or we'll have deja vu all over again!

140

No funny smell from exhaust, starts great also. I'm going to change the gas filter and take a run up to the mountains and if that fixes it.

1 people found this helpful.

yay!

140

I guess the gas filter for my truck is in the gas tank?

1 people found this helpful.

probably a small can with nipples at both ends. 'bout 3 1/2" lg.

I got a 2004 Silverado check engine light goes on but goes away last bout couple 30min at 350.000miles Let me know anyone !!!

Your Answer:

Silverado 1500

Looking for a Used Silverado 1500 in your area?

CarGurus has 158,323 nationwide Silverado 1500 listings starting at $1,000.

ZIP:

Chevrolet Silverado 1500 Experts

  • #1
    John Carson
    Reputation
    3,510
  • #2
    Rowefast
    Reputation
    2,480
  • #3
    Andrew Olsen
    Reputation
    2,310
View All

Related Models For Sale

Used GMC Sierra 1500
809 Great Deals out of 60,637 listings starting at $1,495
Used Ford F-150
2,357 Great Deals out of 199,530 listings starting at $1,300
Used Chevrolet Silverado 2500HD
373 Great Deals out of 29,553 listings starting at $2,718
Used Dodge Ram 1500
341 Great Deals out of 9,293 listings starting at $1,800
Used Toyota Tundra
468 Great Deals out of 37,942 listings starting at $1,750
Used Toyota Tacoma
465 Great Deals out of 49,935 listings starting at $2,695
Used Chevrolet Tahoe
674 Great Deals out of 38,545 listings starting at $995
Used Chevrolet Colorado
285 Great Deals out of 39,126 listings starting at $1,500
Used Ford F-250 Super Duty
472 Great Deals out of 37,739 listings starting at $1,999
Used GMC Sierra 2500HD
148 Great Deals out of 18,153 listings starting at $3,200
Used Ford Mustang
303 Great Deals out of 40,193 listings starting at $1,312
Used Chevrolet Silverado 2500
117 listings starting at $5,995
Used Dodge Ram 2500
131 Great Deals out of 4,723 listings starting at $999

Used Cars For Sale

2019 Chevrolet Silverado 1500 For Sale
340 listings starting at $35,895
2018 Chevrolet Silverado 1500 For Sale
184 Great Deals out of 102,486 listings starting at $18,865
2017 Chevrolet Silverado 1500 For Sale
125 Great Deals out of 7,863 listings starting at $15,995
2016 Chevrolet Silverado 1500 For Sale
191 Great Deals out of 6,659 listings starting at $14,498
2015 Chevrolet Silverado 1500 For Sale
209 Great Deals out of 10,340 listings starting at $11,000

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.