1999 Suburban won't start unless I UNPLUG all smog etc. plugs

25

Asked by Mar 04, 2017 at 02:25 PM about the 1999 Chevrolet Suburban C1500 LT

Question type: Maintenance & Repair

1999 Suburban won't start unless I UNPLUG all smog etc. plugs but won't run good (with power) unless I plug them back in after getting it started.  

It was running great until a wire burned through and shut down the Suburban (while I was driving it).  I repaired the wire and experienced this peculiar starting problem ever since.  

Perhaps I missed another wire somewhere but I don't think so.  I have been all over this (HOURS spent) and can't figure it out.

It's not practical to unplug everything and plug it back in whenever I want to drive the vehicle.

1 Answer

25

UPDATE: I have swapped out the "brain" from a couple other Suburbans that I have, and that does not solve the problem. I have replace the fuel pressure sensor too -- with no luck.

Your Answer

Chevrolet Suburban Experts

  • #1
    Andrew Olsen
    Reputation
    1,060
  • #2
    Neal Turner
    Reputation
    980
  • #3
    Eric Fritz
    Reputation
    940
View All

Related Models For Sale

Used GMC Yukon XL
272 Great Deals out of 14,414 listings starting at $2,495
Used Chevrolet Tahoe
801 Great Deals out of 41,547 listings starting at $1,987
Used GMC Yukon
583 Great Deals out of 20,656 listings starting at $2,695
Used Ford Expedition
362 Great Deals out of 17,113 listings starting at $1,500
Used Cadillac Escalade
248 Great Deals out of 11,858 listings starting at $1,200
Used Chevrolet Silverado 1500
2,573 Great Deals out of 173,118 listings starting at $955
Used Ford F-150
3,124 Great Deals out of 219,053 listings starting at $1,200
Used GMC Sierra 1500
1,175 Great Deals out of 64,149 listings starting at $999
Used Lincoln Navigator
94 Great Deals out of 3,764 listings starting at $1,955
Used Ford Explorer
1,179 Great Deals out of 68,823 listings starting at $750
Used Ford Excursion
8 Great Deals out of 844 listings starting at $2,300

Used Cars For Sale

2017 Chevrolet Suburban For Sale
104 Great Deals out of 7,093 listings starting at $38,500
2016 Chevrolet Suburban For Sale
64 Great Deals out of 1,495 listings starting at $30,500
2015 Chevrolet Suburban For Sale
47 Great Deals out of 1,706 listings starting at $22,997
2014 Chevrolet Suburban For Sale
24 Great Deals out of 560 listings starting at $13,495
2013 Chevrolet Suburban For Sale
38 Great Deals out of 698 listings starting at $10,988

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.