Go Back   Chevrolet Forum - Chevy Enthusiasts Forums > Current Chevy Trucks, SUV's, Crossovers & Vans > Silverado & Fullsize Pick-ups
Sign in using an external account
Register Forgot Password?

Silverado & Fullsize Pick-ups The Silverado has been one of the best selling trucks in the US for decades, and is truly proven to be "like a rock".

2014 Chevy Silverado
Platform: Truck, GMT 400, 800, & 900
Sponsored by: Bakliner

LinkBack Thread Tools
Old 01-28-2012, 07:04 AM
CF Beginner
Join Date: Jan 2012
Posts: 3
Default 97 1500 wont fire

I got a friend with a 97 1500 4x4 5.0l and the truck died on him yesterday. His wife said it started up then ran for a couple seconds then died, I went to look at it for him, first thing I checked was sprk, which it had, but a orangeish color. Then I checked fuses for fuel pump they are good so is the relay, then me and my dad went their quick to look at it, he sprayed some start I fluid in it and it fired then i heard a loud knocking when it ran for those few seconds, then it backfired then started on fire, we tried to suck the flame back in but it wouldn't go out, so we think the timing may have jumped. The truck has 190k.
Can the timing jump on these motors?
I did use my tire pressure guage on the fuel rail and gas came out, now the only thing I'm worried about is if the timing jumped did i f'up the valves. going to check the. Timing today but I don't see the marks on the dampener pulley, so i got to pull #1 and do tdc and check th rotor.
Could their be a sensor that is bad and causing the truck not to run also?
Register today for free or log-in if already registered to remove this ad!
Reply With Quote
Old 01-28-2012, 07:40 AM
CF Senior Member
Join Date: Feb 2011
Location: Middletown DE
Posts: 345

how many miles,i had problems with the crank sensor that would cause the engine stop when the starter was trying to turn it over destroyed a starter and flex plate

Engine - No/Hard/Slow Start/Backfire/Kickback

File In Section: 06 - Engine/Propulsion System

Bulletin No.: 00-06-04-014

Date: April, 2000


No, Hard, or Slow Start, Backfire or "Kickback" During
Crank/Start, "Grinding" or Unusual Noises During Crank, DTC P0338
(Replace Crankshaft Position Sensor)

1999-2000 Cadillac Escalade
1995-2000 Chevrolet and GMC SIT Models
1996-2000 Chevrolet and GMC C/K, M/L, G, P Models
1996-2000 Oldsmobile Bravada
with 4.3 L, 5.0 L, 5.7 L or 7.4 L Engine
(VINs W, X, M, R, J RPOs L35, LF6, L30, L31, L29)

Some customers may comment on one or more of the following conditions:

^ Backfire during crank/start
^ "Kickback" during crank/start
^ "No" start
^ "Slow" or "hard" start/crank
^ "Grinding" or unusual noises during crank/start
^ Cracked or broken engine block at the starter boss
^ Broken starter drive housing
^ Broken starter ring gear on flywheel
^ Any combination of the above

A condition may exist that allows the crankshaft position sensor to command up to 50 extra degrees of spark advance during engine cranking only. This in turn exposes the engine to higher than normal cylinder pressures which may result in an inoperative condition to the starter drive housing, the engine flywheel starter ring gear, or the engine block at the outside edge of the starter boss.

Inspect for a stored powertrain DTC code P0338. This DTC will NOT illuminate the "Service Engine Soon" light. If this code is stored, the Crankshaft Position Sensor, P/N 10456607, MUST be replaced and the remaining components inspected for damage (engine block at the starter boss, the starter drive housing, and the engine flywheel starter ring gear).

Notice : When DTC code P0338 is set, failure to replace the Crankshaft Position Sensor could result in repeated inoperative conditions of the starter or flywheel.

Important : Some flywheel wear is normal; broken or missing teeth and/or cracks, are not normal.

Parts Information

Parts are currently available from GMSPO.

Warranty Information:


97 4x4 burb
Reply With Quote
Old 01-28-2012, 11:17 AM
CF Beginner
Join Date: Jan 2012
Posts: 3

190k on it, I did find a way to test the crank position sensor and I tested it, 12v of power but I don't seem to get any reading on the feedback wire
Reply With Quote
Old 01-30-2012, 03:25 PM
CF Beginner
Join Date: Jan 2012
Posts: 3

Well it turned out to be the fuel pump.
Reply With Quote
Old 01-30-2012, 03:25 PM

1500, 97, chevy, crank, engine, fire, k1500, l31, nohardslow, silverado, slow, startbackfirekickback00060401404012000, starts, tdc, wont

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

Join Chevroletforum
Featured Sponsors
Vendor Directory
Our Sponsors
All times are GMT -5. The time now is 11:24 PM.

Internet Brands, Inc.

Emails Backup