some more troubleshooting

Asked by Feb 13, 2018 at 12:11 AM about the 2002 GMC Sierra 1500 SLT Extended Cab SB

Question type: Maintenance & Repair

Also, another problem that I have; since I've bought this
truck and changed the motor in it I've been experiencing
some acceleration problems. When the truck is in park it’ll
somewhat idle right, (but not like how it should be idling)
then when I put it in gear, it struggles to go. I’m having this
assumption that possibly the 02 sensors are bad, maybe,
for it to be running the way that’s it’s running. Plus I’ve
also had the fuel pump (but with a used one though) so at
this moment, I’m not very sure what the problem could be
or maybe at this time! So with that being said does
anyone have any idea’s on what my problem could be?

5 Answers


check sparkplugs first , gap and clean, test fuel pressure at shrader valve check point , also firing order may have got crossed

Okay I will look into that next, thanks! But one more thing, I have this oil leak, that is somehow getting oil over last two coils on the passenger side of my engine. Im guessing it’s coming from the head some where, I don’t know yet at the moment cause I’m still trying to find the area where it’s coming from!


maybe valve cover pan gaskets? oil might cause spark to jump to ground making a misfire, wipe and cover with rag to hold off oil and see if better running now, don't catch fire!

1 people found this helpful.

Ivos it could be your dipstick i had a issue on a car of mine one of the dipsticks would pop out and let oil come out might not be it but might not hurt to check

Getting only 4.4 miles per gallon. Am I in 4 wheel drive or what?

Your Answer:

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 11,824 nationwide Sierra 1500 listings starting at $2,800.

Postal Code:

GMC Sierra 1500 Experts

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

Find great deals from top-rated dealers


Related Models For Sale

Used Chevrolet Silverado 1500
111 Great Deals out of 13,434 listings starting at $2,800
Used Ford F-150
198 Great Deals out of 14,839 listings starting at $2,000
Used GMC Sierra 2500HD
15 Great Deals out of 1,823 listings starting at $7,499
Used Chevrolet Silverado 2500HD
27 Great Deals out of 1,518 listings starting at $3,995
Used Toyota Tundra
16 Great Deals out of 863 listings starting at $5,999
Used Dodge Ram 1500
10 Great Deals out of 364 listings starting at $1,650
Used Toyota Tacoma
29 Great Deals out of 1,482 listings starting at $4,867
Used Ford F-250 Super Duty
17 Great Deals out of 1,159 listings starting at $4,999
Used GMC Yukon
16 Great Deals out of 1,144 listings starting at $2,000
Used Chevrolet Tahoe
14 Great Deals out of 924 listings starting at $6,871

Used Cars for Sale

2020 GMC Sierra 1500 For Sale
2,698 listings starting at $7,763
2019 GMC Sierra 1500 For Sale
10 Great Deals out of 6,438 listings starting at $2,800
2018 GMC Sierra 1500 For Sale
21 Great Deals out of 622 listings starting at $22,999
2017 GMC Sierra 1500 For Sale
20 Great Deals out of 647 listings starting at $19,850
2016 GMC Sierra 1500 For Sale
7 Great Deals out of 340 listings starting at $17,850

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.