I have a 1996 suburban with an issue that need help with. My truck idle find revs up find only when you put it in gear and want to go it wants to die you let off the paddle and it fin you step on the gas want to chock it has no power. I have cleaned out throttle, change throttle position sensor, Map sensor and it runs the same. I'm not reading any codes no check engine light or nothing. what could it be. clog cat, bad fuel pamp?

10

Asked by Jun 03, 2015 at 09:44 AM about the 1996 Chevrolet Suburban C1500

Question type: Maintenance & Repair

I have a 1996 suburban with an issue that need help with. My truck idle find revs up find
only when you put it in gear and want to go it wants to die you let off the paddle and it fin
you step on the gas want to chock it has no power.  I have cleaned out throttle, change
throttle position sensor, Map sensor and it runs the same. I'm not reading any codes no
check engine light or nothing. what could it be. clog cat, bad fuel pamp?

8 Answers

21,525

Have the fuel pressure checked. Should be at 55psi and not leak down when turned off

2 people found this helpful.
10

I never done this before where should connect @ by the fuel filter or were.

1 people found this helpful.
21,525

There is a scherder valve towards the back of the motor

2 people found this helpful.
10

Also it runs fine @ times you just never know when. So if that happen it mean I have a bad fuel pump?

21,525

It could, or the regulator. The fuel pressure test will rule it out.

1 people found this helpful.
10

Ok So I check pressure and yes it's leaking down when turned off not holding. So it means I have a bad regulator or Pump

21,525

Yes, you can take the upper intake off and see if regulator is leaking. It is on the back of the injector unit. If it's leaking there will be a clean spot underneath it. Otherwise it should be rather dirty. If that checks out then it's the pump unless there is a break in a line somewhere.

1 people found this helpful.
10

Thank you! I will try it and let you know..Also this Truck sat for about 6 months but was turned on every other week.. I don't know if that will a difference

Your Answer

Suburban

Looking for a Used Suburban in your area?

CarGurus has 22,381 nationwide Suburban listings starting at $1,132.

ZIP:

Chevrolet Suburban Experts

  • #1
    Andrew Olsen
    Reputation
    1,210
  • #2
    Neal Turner
    Reputation
    1,080
  • #3
    Eric Fritz
    Reputation
    1,020
View All

Related Models For Sale

Used Chevrolet Tahoe
528 Great Deals out of 36,658 listings starting at $1,375
Used GMC Yukon
311 Great Deals out of 19,755 listings starting at $1,400
Used Ford Expedition
427 Great Deals out of 20,901 listings starting at $1,000
Used Ford F-150
2,344 Great Deals out of 215,478 listings starting at $1,300
Used GMC Sierra 1500
722 Great Deals out of 58,462 listings starting at $1,900

Used Cars For Sale

2018 Chevrolet Suburban For Sale
9 Great Deals out of 9,206 listings starting at $41,999
2017 Chevrolet Suburban For Sale
109 Great Deals out of 4,311 listings starting at $33,500
2016 Chevrolet Suburban For Sale
36 Great Deals out of 1,049 listings starting at $27,995
2015 Chevrolet Suburban For Sale
52 Great Deals out of 1,615 listings starting at $23,500
2014 Chevrolet Suburban For Sale
15 Great Deals out of 487 listings starting at $13,495

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.