why is my truck not firing

Elvin Reed
0

Asked by Elvin Jul 21, 2013 at 12:35 AM about the 2004 Chevrolet Silverado 1500 Ext Cab Long Bed 2WD

Question type: Maintenance & Repair

i have changed the crank and cam sensors but my truck keeps losing fire

11 Answers

tommcmanis
3,955

Year make model plz

judge_roy
Not Active

the ground connection of the 1/0 battery cable to the chassis ground should be wirebrushed clean...the battery should be younger than five years old...with the chassis ground with a reliable source (not varying amperage and voltage) your ECM has a shot at getting it right~

1 out of 1 people think this is helpful.
tommcmanis
3,955

Ok first work smart not hard scan see if any codes, or no communication no communication... be sure you have a working obd 2 port if your rig had factory security, (ie) flashing window that says security constantly, take key to dealer or quaified locksmith to test key. This truck may have a skim reader,(the key sends a signal to truck,oh ok yup you are mine ill start. If this is the case the security light will have been acting up for awile annoying flashing, stalling ,and just generally irritating. Solution replace key w proper programming recommend the dealer the reason oe parts work better and are engineered for your ride,and will give you a longer service life, you get what you pay for. Test,test,test first

1 out of 1 people think this is helpful.
tommcmanis
3,955

Hope that helps

2 out of 2 people think this is helpful.
Elvin Reed
0

the security light is not flashing. do you know what could be causing it to crank when its cold but starts to sputter and then shut off and will not crank again,seems like it loses spark.

tommcmanis
3,955

Do you have communication to ecm when no spark condition exists? Check grounds on back of the head on drivers side

1 out of 1 people think this is helpful.
tommcmanis
3,955

Wire can be broken or been pulled inside insulation cold the insulation will soften and stretch breaking connection cold it shinks making connection again

1 out of 1 people think this is helpful.
tommcmanis
3,955

Also check coil packs.

1 out of 1 people think this is helpful.
Elvin Reed
0

the coil packs are good do you know if there is a ignition module or something that could cause it to lose fire and sputter

tommcmanis
3,955

Ecm runs everything

2 out of 2 people think this is helpful.
tommcmanis
3,955

Connect obd 2 tool and see if you have communication,no communication computer is toast

2 out of 2 people think this is helpful.

Your Answer

Add photo

Related Questions

  • my 2005 1500 silverado quit firing 1 answer

    turned truck off went to start it about 3 hours later wouldnt start getting no fire through coil or spark plugs changed coil but didnt help

    2005 Chevrolet Silverado 1500 Ext Cab 2WD

    -

    Maintenance & Repair

  • whats the firing order on a 87 silverado truck 5.7liter? 1 answer

    Chevrolet Silverado 1500

    -

    Maintenance & Repair

  • 2000 1500 silverado v6 will not start. 14 answers

    truck has 58 lbs of fuel pressure and spark at plugs. Plugs are wet and smell like gas. Will miss some times when running. Some days runs great , other days runs bad. On rainy days will not always sta...

    2000 Chevrolet Silverado 1500 LT Ext Cab 4WD

    -

    Maintenance & Repair

  • 2004 silverado Z71 flashing check engine light 28 answers

    my check engine light has come on and had started blinking just lately. which means engine misfire. after replacing the plugs and wires the truck seems to have a rough idle and still seems to misfire ...

    2004 Chevrolet Silverado 1500 Z71 Crew Cab Short Bed 4WD

    -

    Maintenance & Repair

  • 1996 s10 not fireing 5 answers

    1996 s10 4.3 will not fire

    1996 Chevrolet S-10

    -

    Maintenance & Repair

Silverado 1500
Looking for a Used Silverado 1500 in your area?
CarGurus has 170,889 nationwide Silverado 1500 listings starting at $650.
ZIP:

Search Chevrolet Silverado 1500 Questions

Chevrolet Silverado 1500 Experts

#1 tenspeed
tenspeed
Reputation 490
#1 Andrew Olsen
Andrew Olsen
Reputation 490
#3 califcarson
califcarson
Reputation 470
View All

Related Models For Sale

Used GMC Sierra 1500"
1,078 Great Deals out of 59,547 listings starting at $1,999
Used Ford F-150"
2,923 Great Deals out of 154,329 listings starting at $1,500
Used Dodge Ram Pickup 1500"
846 Great Deals out of 14,520 listings starting at $1,900
Used Chevrolet Silverado 2500HD"
526 Great Deals out of 38,963 listings starting at $3,500
Used Toyota Tundra"
530 Great Deals out of 26,045 listings starting at $2,995
Used Chevrolet Tahoe"
998 Great Deals out of 30,641 listings starting at $2,800
Used Toyota Tacoma"
689 Great Deals out of 23,275 listings starting at $2,199
Used Chevrolet Silverado 1500HD"
22 Great Deals out of 312 listings starting at $3,988
Used Chevrolet Silverado 2500"
9 Great Deals out of 309 listings starting at $3,900
Used Chevrolet Colorado"
226 Great Deals out of 6,760 listings starting at $3,800
Used Chevrolet Avalanche"
315 Great Deals out of 5,908 listings starting at $2,194
Used Ford F-250 Super Duty"
660 Great Deals out of 34,976 listings starting at $2,595
Used Jeep Wrangler"
1,189 Great Deals out of 49,383 listings starting at $1,800

Used Cars For Sale

2015 Chevrolet Silverado 1500 For Sale
64,230 listings starting at $36,995
2014 Chevrolet Silverado 1500 For Sale
287 Great Deals out of 66,202 listings starting at $19,244
2013 Chevrolet Silverado 1500 For Sale
395 Great Deals out of 7,248 listings starting at $12,983
2012 Chevrolet Silverado 1500 For Sale
308 Great Deals out of 6,009 listings starting at $8,495
2011 Chevrolet Silverado 1500 For Sale
379 Great Deals out of 7,307 listings starting at $7,995