Starting

20

Asked by Mar 22, 2016 at 11:44 PM about the 2010 GMC Sierra 1500 SLE Crew Cab 4WD

Question type: Maintenance & Repair

The other day my truck died on the
interstate, and would not start back up.
Had it towed. It has 55-60 psi at the fuel
rail, the only code was after trying to start it
the P0340 popped up. Replaced cam shaft
position sensor. Still won't start. Checked
for spark on all right plugs, it's getting fire.
While checking compression, the starter
stopped engaging the flywheel. Spins but
doesn't turn the flywheel. I pulled the
starter and the shaft was loose. Replaced
with a new starter and same thing, starter
spins, won't engage the fly wheel. These
are two separate issues I believe. The truck
is the 5.3 liter with engine code 3 for the
vin. It also has the fuel driver module and
fuel pressure sensor rather than a relay and
fuse for the fuel pump.

3 Answers

335

out of curiosity have u tried to turn engine by hand to make sure that its not lockup...

20

Actually yes I have. I rotated the engine with the crank shaft bolt and it turns just fine. The teeth on the fly wheel look to be intact as well. I'm going out today to look at it again in the daylight and check the bolts in the face of the flywheel to make sure they are tight.

20

Update. Checked and the whole engine is turning with the starter. It was a duh moment for me. Starter was ok. However compression tests on the cylinders revealed cylinder 5 and 8 have zero compression and cylinder 6 has 60 psi. All the others are 120 psi + or - 2psi. Engine is toast, I am assuming.

2 out of 2 people think this is helpful.

Your Answer

Add photo

Related Questions

  • Wont start 2 answers

    Replced battery, starter and alternater still wont start. Please any help would be appreciated.

    1997 GMC Sierra 1500 C1500 GT Standard Cab SB

    -

    Maintenance & Repair

  • crank but wont start 1 answer

    replaced fuel pump and filter ran great started right up went over bumps now same issue wont even start after priming

    1996 GMC Sierra 1500

    -

    Maintenance & Repair

  • How do i start my gmc 2002 aftet replacement 2 answers

    I replace my gmc steering wheel colum and my truck won't start

    2002 GMC Sierra 1500

    -

    Maintenance & Repair

  • Truck won't start 35 answers

    Recently I have experienced starting issues. One minute it starts and runs great, next time I try to start it it turns over but won't start. Let sit for awhile, turn key, won't start, turn key off...

    1988 GMC Sierra 1500 C1500 Standard Cab SB

    -

    Maintenance & Repair

  • want start 1 answer

    1996 chevy suburban will not start it starts when I pray starter fluid in then it start

    1996 GMC Suburban C2500

    -

    Maintenance & Repair

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 60,125 nationwide Sierra 1500 listings starting at $1,299.

ZIP:

Search GMC Sierra 1500 Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

GMC Sierra 1500 Experts

#1 dragonflyoffshore
dragonflyoffshore
Reputation 4,630
#2 John Saffrahn
John Saffrahn
Reputation 3,240
#3 Glenn Clingenpeel
Glenn Clingenpeel
Reputation 2,910
View All

Related Models For Sale

Used Chevrolet Silverado 1500
2,510 Great Deals out of 152,118 listings starting at $1,500
Used Ford F-150
3,017 Great Deals out of 207,758 listings starting at $1,000
Used GMC Sierra 2500HD
146 Great Deals out of 13,208 listings starting at $3,500
Used Toyota Tundra
660 Great Deals out of 28,287 listings starting at $2,798
Used Dodge Ram 1500
500 Great Deals out of 13,071 listings starting at $1,495
Used Ram 1500
1,284 Great Deals out of 115,510 listings starting at $6,500
Used Toyota Tacoma
704 Great Deals out of 31,954 listings starting at $2,750
Used Chevrolet Silverado 2500HD
383 Great Deals out of 27,082 listings starting at $2,998
Used GMC Yukon
556 Great Deals out of 17,134 listings starting at $1,875
Used Chevrolet Tahoe
818 Great Deals out of 27,815 listings starting at $1,700
Used Ford F-250 Super Duty
490 Great Deals out of 43,316 listings starting at $1,900
Used GMC Canyon
133 Great Deals out of 8,053 listings starting at $2,000
Used Chevrolet Camaro
401 Great Deals out of 40,631 listings starting at $3,500
Used Chevrolet Colorado
292 Great Deals out of 17,852 listings starting at $1,995

Used Cars For Sale

2017 GMC Sierra 1500 SLE Crew Cab 4WD For Sale
4 Great Deals out of 2,938 listings starting at $36,995
2016 GMC Sierra 1500 SLE Crew Cab 4WD For Sale
3 Great Deals out of 534 listings starting at $34,500
2015 GMC Sierra 1500 SLE Crew Cab 4WD For Sale
4 Great Deals out of 373 listings starting at $24,900
2014 GMC Sierra 1500 SLE Crew Cab 4WD For Sale
23 Great Deals out of 623 listings starting at $19,999
2013 GMC Sierra 1500 SLE Crew Cab 4WD For Sale
29 Great Deals out of 697 listings starting at $15,900