not getting fire on 5.3l - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Alderson95 · 07-01-2012, 01:50 PM

i have a 02 tahoe 5.3l vortec 4l60e trans 2wd. i had gone out this morning to start the tahoe and it wouldnt start. i checked the fule to make sure that it was getting fule it was. so then i checked the fire nothing i hocked a test light up to it and a timing gun nothing. i have checked all the fuses but nothing it just seems odd. if anyone has any ideas about what it could be i would greatly appreciate any feedback.

jeffg1010 · 07-01-2012, 02:50 PM

My 5.7 did something similar and it was the crankshaft position sensor. A cheap and easy (2 bolts) fix. About $35.00
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Alderson95 · 07-01-2012, 02:59 PM

I don't think it's the crank sensor. I think it's in the ignition it is hard to turn over some time into the on position. I also can never get the ignition to turn into the backwards aux position.
Posted via Mobile Device

clinebarger · 07-01-2012, 07:21 PM

Quote:

Originally Posted by Alderson95

I don't think it's the crank sensor. I think it's in the ignition it is hard to turn over some time into the on position. I also can never get the ignition to turn into the backwards aux position.
Posted via Mobile Device

Check for ignition voltage at the coils, MAF, & Injectors.

07-01-2012, 01:50 PM	#1
Alderson95 Registered User Join Date: Oct 2010 Location: Whitney Posts: 152	not getting fire on 5.3l i have a 02 tahoe 5.3l vortec 4l60e trans 2wd. i had gone out this morning to start the tahoe and it wouldnt start. i checked the fule to make sure that it was getting fule it was. so then i checked the fire nothing i hocked a test light up to it and a timing gun nothing. i have checked all the fuses but nothing it just seems odd. if anyone has any ideas about what it could be i would greatly appreciate any feedback.

07-01-2012, 02:50 PM	#2
jeffg1010 Registered User Join Date: Aug 2010 Location: Mooresville, NC Posts: 2,677	Re: not getting fire on 5.3l My 5.7 did something similar and it was the crankshaft position sensor. A cheap and easy (2 bolts) fix. About $35.00 Posted via Mobile Device __________________ Jeff 1972 Blazer CST 2wd- My son Sam's Project "S" Project "S" 1970 Suburban - SOLD "One Bad Burb" Photobucket Album 1986 C30 Crewcab - 63K original miles, original paint Members I have met: mikey531, gcburdic, bashed, burbman69, TonyPieras, Blazester, GCncsuHD, custombuilt67-72, tsnow678, highrpm, PanelDeland, tanman722001, 47thriftmaster, babyblueoval, 68stepbed, JesseWebb, Andy4639, xs-style, TobyArnot, BigOrange, frednoah, brn_agn, k5hart, Graham57a, bhelton, AJohn6, SilverC10, 69CST, '71 Flame, RaceAGMC, Liz, Josh, MattPSU, 68corvair, Chevy350V8, mdeal, ccrorymc, mrhurt73, dmxxpert, Custom68, 84GMC, BionicABs1, BigBlockBurris, Ebfabman, ATP...

07-01-2012, 02:59 PM	#3
Alderson95 Registered User Join Date: Oct 2010 Location: Whitney Posts: 152	Re: not getting fire on 5.3l I don't think it's the crank sensor. I think it's in the ignition it is hard to turn over some time into the on position. I also can never get the ignition to turn into the backwards aux position. Posted via Mobile Device



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