2005 chevy silverado no spark on any cylinder

80

Asked by Guspanka21 Feb 29, 2020 at 07:40 PM about the 2005 Chevrolet Silverado 1500 LT Extended Cab 4WD

Question type: Maintenance & Repair

I have a 2005 chevy silverado 1500 5.3 v8 and i have lost all spark on every
cylinder. i had the truck idling in the driveway and it died all of sudden. went
out to restart and i dont get a fire or any pop at all and put a spark tester on
multiple cylinders and identified that i indeed have no spark anywhere. i
started by testing to make sure i have good voltage and ground at the plugins
for each coil which i do. then i replace the crankshaft position sensor (which it
wasnt throwing a code for it but replaced it anyway) and it still has no spark.
the only thing i could think of left that could be bad would be my pcm. today i
went to the junkyard and bought a used pcm that has the exact same
numbers on the tag and tried swapping it and going through the re-learn and
still no spark. went back to original pcm, still no spark. im absolutely stumped
here. any help would be appreciated.

5 Answers

80

i thought camshaft positioning sensor was only monitored by the pcm for fuel synchronization? where the crankshaft positioning sensor is monitored for ignition and fuel?

1 people found this helpful.
80

there are no codes for either the crankshaft or camshaft positioning sensor. the only reason i swapped the crankshaft positioning sensor is because the haynes manual says if you have a loss of spark and have already confirmed that there is good voltage and ground at coils then it may be the crankshaft positioning sensor, pcm, or wiring. i have a new pcm on the way. i am going to try that and if that does not work i will replace the camshaft positioning sensor. i appreciate the help and will update after i install the new pcm.

1 people found this helpful.
80

i had already ordered a new pcm before you mentioned the camshaft positioning sensor, and like i previously stated, the manual does not state the camshaft positioning sensor to cause a loss of all spark, only the crankshaft positioning sensor, pcm, or faulty wiring

2 people found this helpful.
80

update: i installed a new pcm i ordered with my VIN programmed into it. did the re-learn procedure, still no spark. replaced the camshaft position sensor like you already reccomended, still no spark. checked plug ins for the camshaft and crankshaft positioning sensor to make sure i have a good ground and good voltage. they read all good. replaced the ignition switch in the steering column just for shits and giggles, still no luck. anybody got any help here???? absolutely ready to pull my hair out and just ship the thing to the damn junkyard.

2 people found this helpful.
80

it does not have a separate ignition module. just the pcm, and coils.

2 people found this helpful.

Your Answer:

Silverado 1500

Looking for a Used Silverado 1500 in your area?

CarGurus has 122,543 nationwide Silverado 1500 listings starting at $1,995.

ZIP:

Own this car?

Share your experience with others.

2005 Chevrolet Silverado 1500

Review another car

CarGurus Experts

  • #1
    Rowefast
    Reputation
    10,510
  • #2
    Andrew Olsen
    Reputation
    9,700
  • #3
    John Carson
    Reputation
    9,680
View All

Know more, shop wisely

Search

Related Models For Sale

Used GMC Sierra 1500
1,912 Great Deals out of 71,692 listings starting at $1,900
Used Ford F-150
6,689 Great Deals out of 173,754 listings starting at $1,995
Used Chevrolet Silverado 2500HD
1,039 Great Deals out of 41,086 listings starting at $2,995
Used Toyota Tundra
1,055 Great Deals out of 29,359 listings starting at $3,000
Used Dodge RAM 1500
64 Great Deals out of 1,776 listings starting at $3,495
Used Toyota Tacoma
2,128 Great Deals out of 55,458 listings starting at $3,499
Used Chevrolet Tahoe
1,400 Great Deals out of 32,178 listings starting at $1,550
Used Chevrolet Colorado
1,094 Great Deals out of 32,362 listings starting at $2,900
Used GMC Sierra 2500HD
547 Great Deals out of 23,502 listings starting at $3,995
Used Ford F-250 Super Duty
1,309 Great Deals out of 53,777 listings starting at $1,750
Used Dodge Charger
792 Great Deals out of 14,525 listings starting at $1,500
Used Chevrolet Corvette
773 Great Deals out of 13,958 listings starting at $4,995

Used Cars for Sale

2024 Chevrolet Silverado 1500 For Sale
337 Great Deals out of 18,111 listings starting at $25,995
2023 Chevrolet Silverado 1500 For Sale
457 Great Deals out of 5,292 listings starting at $18,995
2022 Chevrolet Silverado 1500 For Sale
583 Great Deals out of 7,336 listings starting at $19,500
2021 Chevrolet Silverado 1500 For Sale
572 Great Deals out of 6,982 listings starting at $13,995
2020 Chevrolet Silverado 1500 For Sale
421 Great Deals out of 4,752 listings starting at $12,800

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.