help with 2001 s10 4.3 motor revs fine in park but bogs down under acceleration

Asked by Jan 31, 2016 at 12:35 AM about the 2001 Chevrolet S-10 2 Dr STD 4WD Extended Cab SB

Question type: Maintenance & Repair

Need some help with my s10. Ive tried everything replaced map sensor  fuel pump checked throttle sensor egr valve wires plugs rotor distrbutor cap  fuel filter .The truck idles an revs fine go to drive and accelerate and it bogs  if it was an old car  I would think it was thru vaccum advance. Any help would be a big help. Thanks RW

2 Answers


What you need to check is if there is a fuel leak. I would do a fuel pressure bleed down test by hooking up a fuel pressure gauge to the Schrader valve, cycle the key to build up pressure which should be 56 to 63 lbs. then turn the key off then watch the pressure gauge from its highest reading. The fuel pressure should not drop more that 5 lbs in 3 minutes. If it does the there is either leaky fuel injectors, leaky spider lines, or leaky fuel regulator. Unfortunately if any of these are leaking it is recommended to replace all as a unit as it has ben redesigned to be better, and spendy of course.

Best Answer Mark helpful

Thanks for the quick answer I did a fuel pressure test after installing the new fuel pump did great pressure was right on. But I didn't let it set just ran the engine and watched the gauge. Thanks for the help I'll try that. RW

Your Answer

Chevrolet S-10 Experts

  • #1
    Andrew Olsen
  • #2
    John Saffrahn
  • #3
View All

Related Models For Sale

Used Chevrolet Silverado 1500
2,170 Great Deals out of 150,762 listings starting at $1,499
Used Ford Ranger
105 Great Deals out of 4,704 listings starting at $1,100
Used GMC Sonoma
347 listings starting at $1,799
Used Toyota Tacoma
425 Great Deals out of 40,424 listings starting at $2,600
Used Ford F-150
2,488 Great Deals out of 220,740 listings starting at $1,222
Used Dodge Dakota
64 Great Deals out of 3,173 listings starting at $1,500
Used Chevrolet Blazer
731 listings starting at $900
Used Nissan Frontier
343 Great Deals out of 24,427 listings starting at $1,550
Used GMC Sierra 1500
892 Great Deals out of 59,014 listings starting at $1,980
Used Dodge Ram 1500
331 Great Deals out of 9,666 listings starting at $800
Used Chevrolet Camaro
245 Great Deals out of 30,155 listings starting at $4,980

Used Cars For Sale

2004 Chevrolet S-10 For Sale
40 listings starting at $3,000
2003 Chevrolet S-10 For Sale
4 Great Deals out of 253 listings starting at $2,995
2002 Chevrolet S-10 For Sale
3 Great Deals out of 179 listings starting at $950
2001 Chevrolet S-10 For Sale
130 listings starting at $999
2000 Chevrolet S-10 For Sale
142 listings starting at $3,750

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.