Question about 1998 Chevrolet Suburban

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1998 suburban wont stay running. Will start and run for one second or two then dies. This will continue over and over. If it will get past the two second time will stay running til shut off. Is this fuel pressure, partially clogged fuel filter?? It will also surge or continuously kinda stumble at low RPM or a neutral throttle position. Full throttle is fine. Last week the "SECURITY" light came on and stayed on while driving. This indicated something in the "PASSLOCK" system. Now its off though. It does something with the fuel system. So I wonder if that is related??

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  • 252 Answers

Starting for a second or two is quite possible that the passlock system is causing it. I've seen this happen before. There are a lot of videos on youtube about bypassing this system. Have a look. bypass GM anti theft YouTube

Posted on May 13, 2017

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Posted on Jan 02, 2017

  • 137 Answers

SOURCE: 92 corsica wont stay running. cleaned MAF with spray!

the maf on it isnt used a maf only a temp sensor the software change made the syatem speed density controlled fuel.. but if you have a idle probel it may just be the Idle Air Control Motor or IAC try to put foor on the gas pedal a little whne cranking see if it fires right up if so suspect the IAC.. is if still cranks long time try the fuel filter but those usually will make lack of power before you get a hard start issue.

Posted on Feb 04, 2009

  • 3 Answers

SOURCE: anti theft system needs reset/relearn procedure

Have the computer re-flashed

Posted on May 29, 2009

  • 36 Answers

SOURCE: wont start security light stays on

Body Control Module (BCM) on both counts. Find a shop in your town that specializes in electrical systems to test it. Beware, these can be intermittent problems, so make sure they keep it until the car does what you have observed. Expect to spend about $450 for the replacment. Dealers quoted me between $700 and $1,100 for the same repair. By the way, a new BCM will probably only last you about 12 months.

Posted on Aug 14, 2009

  • 548 Answers

SOURCE: My 1995 Chevy Suburban 2WD V8 is stalling. I

just a suggestion, but it might be possible you only need a fuel filter and not a pump and with a new filter you should be able to run your tank lower

Posted on Sep 14, 2009

SOURCE: 98 Chevrolet Silverado runs rough at half throttle and past.

try removing the EGR valve and clean inside of it and manifold

Posted on Feb 17, 2011

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