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99 chevy suburban with 7.4L cranks will try to start but wont

The truck will crank and almost start for a couple seconds but wont fire up, i have fuel, and its a brand new pump. the truck has only been parked for a few days and it was running fine before this. any help at all with this would be fantastic this truck is my pride and joy and im running out of options.

Posted by Anonymous on

6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

  • 341 Answers

SOURCE: 98 chevy camaro wont start

check fuel pressure regulator

Posted on Dec 06, 2008

  • 3600 Answers

SOURCE: cranks but won't start fuel pump not coming on

put a small amount of fuel in the intake near the throttle plate then crank and see if it fires, if it does then it's a fuel problem, if it does not fire then pull a plug wire and put a philips head screw driver into the plug wire hold it 1/4 inch away from a good ground then have someone crank it over, you should see spark and it should be blue, if not then you have a ignition problem a bad coil or cam sensor but need to know what you found out on the two tests I told you first to give you a direction to go.

Posted on May 29, 2009

  • 4 Answers

SOURCE: 2002 chevy express fuel pump/crank sensor?? not starting

i had a similar problem and called the dealer during lunch hour. i talked to a mechanic, the distributor in these vehicles is plastic, and is prone to cracking.not just the cap but the body also, I have been taking the cap off and wiping the moisture out of the cap. or replacing the cap but the problem is I need a new distributor. just a cheep way to get rolling is cleaning the inside of the cap, especially when it is very damp or the outside temp changes alot during the day. good luck.

Posted on Jul 03, 2009

  • 1 Answer

SOURCE: 2000 Crown Vic cranks but won't start.

Check the fuel pump reset switch again, if it is popped back out then replace that little switch in the trunk, any ford one will do. it works off a magnet and a bearing to close the circuit for the fuel pump. easy fix.

Posted on Dec 20, 2009

  • 3600 Answers

SOURCE: 90 chevy k1500 350 tbi fuel problem starts but wont stay running

try bypassing the oil pressure switch on the back of the block behind the distributor, if there oil pressure switch goes bad it will do this. had one that drove me nuts trying to fix it then figured out I had to buy a book and low and behold thee it was 3 wire oil pressure switch you can't see between the engine and fire wall just behind the distributor and costs 8 bucks to buy new.

Posted on Jan 16, 2010

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