Does anyone have any advice on what to do next?

Asked by Rcoles2 Jan 19, 2021 at 12:01 PM about the 1998 GMC Sierra C/K 1500

Question type: Maintenance & Repair

I bought a brand new 5.7 for my 98 GMC k1500.
The truck cranks fine. When I take off it stumbles
like crazy especially when you first crank it. Doesn't
have any problem idling. I notice when I go to put
fuel in it, there is a ton of pressure coming from the
gas cap. I can never floor it and it responds; there
is always hesitation. I got a scan tool and the
codes that showed were P0102(mass or volume
air flow low circuit low input), P0113(IAT sensor
high input), P0140(oxygen sensor circuit no activity
bank 1 sensor 2), P0160( " " bank 2 sensor 2),
P0171(bank 1 system too lean), P0452(
evaporative emission system pressure sensor low
input)...I have replaced MAF sensor, fuel filter,
spider injector kit(fuel pressure regulator included),
fuel pump. I noticed my ltftrm1&2 were close to 20
when running)

2 Answers

Rcoles2 answered 3 years ago

I also replaced o2 sensors but went back to original ones due to the fact that when I ran the truck with the new o2 sensors the truck seemed to run extremely hot..not in coolant temperature, but the truck was hot to the touch

Mark helpful
159,355

Bob answered 3 years ago

If it were mine, the first thing I would do is measure the fuel pressure with a gauge while driving the vehicle. Makes no difference if you have replaced fuel system components or not.

1 people found this helpful.
Mark helpful

Your Answer:

Related Questions

Own this car?

Share your experience with others.

1998 GMC Sierra C/K 1500

Write a car review

Review another car

Shortcuts

Search GMC Sierra C/K 1500 Questions

CarGurus Experts

  • #1
    dandyoun
    Reputation
    410
  • #2
    Andrew Olsen
    Reputation
    270
  • #3
    Greg Adle
    Reputation
    260
View All

Know more, shop wisely

Search

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.