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

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

Add photo

Related Questions

  • My 2001 S10 has a hard starting problem if the truck sits between 1 to 4 hours. It starts fine if left over night. Has 46,000 miles. 77 answers

    Cranks for about ten seconds before it starts.

    2001 Chevrolet S-10 4 Dr LS 4WD Crew Cab SB


    Maintenance & Repair

  • 1989 S10 runs, but won't go 12 answers

    I have an 1989 s10 pickup with a 2.8 v6 fuel injected motor, 5 speed. It starts, and as long a s I give it gas it stays running. It revs up like it wants to go, but When I try to drive it, it stall...

    1989 Chevrolet S-10


    Maintenance & Repair

  • 01 S10 Nightmare Truck 1 answer

    Quick history: 01 S10 4.3 vortex 4x4 192000 miles. Motor swap a year ago 95000 on motor. Recently rebuilt 4l60e transmission. Recent tune-up within the month. New button cap plugs wires t stat hos...

    2001 Chevrolet S-10 4 Dr LS 4WD Crew Cab SB


    Maintenance & Repair

  • Conflicting answers on the firing order of my 86 S10. 38 answers

    I have and 86 S10 pickup 2.8 V6. It is running very rough and wont accelerate hardly at all. I have been told it is a timing issue. I set the timing with a timing light to 8 btdc. It runs horrible the...

    1986 Chevrolet S-10 Durango Standard Cab 4WD SB


    Maintenance & Repair

  • 1994 Chevy C1500 5.7 bogs/backfires when I give it gas. 34 answers

    My truck bogs down (and tries to die) when I give it gas to accelerate off of a stop. There is often a backfire or two when this happens. Pumping the gas does not help. I basically have to crawl thr...

    1994 Chevrolet C/K 1500 Silverado Standard Cab Stepside SB 4WD


    Maintenance & Repair

Search Chevrolet S-10 Questions

Chevrolet S-10 Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 1,970
#2 John Saffrahn
John Saffrahn
Reputation 890
#3 Trebor66
Reputation 840
View All

Related Models For Sale

Used Ford Ranger"
259 Great Deals out of 7,727 listings starting at $988
Used Chevrolet Silverado 1500"
2,466 Great Deals out of 143,822 listings starting at $1,995
Used GMC Sonoma"
9 Great Deals out of 577 listings starting at $1,799
Used Toyota Tacoma"
642 Great Deals out of 30,203 listings starting at $2,850
Used Ford F-150"
3,183 Great Deals out of 216,374 listings starting at $1,900
Used Dodge Dakota"
163 Great Deals out of 4,813 listings starting at $900
Used Chevrolet Blazer"
1,623 listings starting at $1,999
Used Nissan Frontier"
427 Great Deals out of 20,610 listings starting at $2,500
Used GMC Sierra 1500"
1,020 Great Deals out of 56,299 listings starting at $2,499
Used Dodge Ram 1500"
517 Great Deals out of 13,812 listings starting at $995
Used Chevrolet Camaro"
812 Great Deals out of 38,796 listings starting at $2,650
Used Jeep Wrangler"
441 Great Deals out of 16,282 listings starting at $3,400