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#1
03-01-2017, 05:08 PM
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02 ram 1500 no fire to coil pack
i have an 02 dodge ram 1500 with 4.7 v8. It has been running roughly and threw misfire code on cylinder 2 and 8. So i replaced all spark plugs and the coil packs on cylinder 2 and 8. Did nothing to help. so after some more checking i realized im not getting fire to multiple coil packs. checked all the wires, harness' etc. even changed out the crankshaft positioning sensor... still no luck. Im at a loss and have no clue what is going on. any help would be greatly appreciated.
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#2
03-01-2017, 08:11 PM
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Re: 02 ram 1500 no fire to coil pack
Are there any other DTC's.?
Did you check with a scan tool or ignition key trick?
__________________
1992 Bravada, 201K, stock 1997 Bravada, 101K, stock...was "called away"  "Cornbread Red", 2001 Dodge 2500,4X4,HO Cummins Diesel,QC,SWB,6spd.,Banks boost&pyro,US Gage fuel press.,Edge Drag Comp,4"exh.,cowl hood, bhaf, black Holley pump, 140gph...13psi WOT, Vulcan Big Line, kevlar/ceramic single disc clutch, cheapo fuel cooler, 8x.010" vco injector nozzles, Cat turbo 62-65-.70A/R, 497hp 1089 tq 8/25/14  Time to turn so's you don't burn. 
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#3
03-01-2017, 08:22 PM
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Re: 02 ram 1500 no fire to coil pack
Showing p0352, p0353, and p0355 now.
If I understand correctly thats showing coil 2, 3, and 5, not firing or a short. But#2 is a new coil.
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#4
03-01-2017, 08:23 PM
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Re: 02 ram 1500 no fire to coil pack
Key trick atm.
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#5
03-02-2017, 06:50 PM
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Re: 02 ram 1500 no fire to coil pack
Here's something useful,
https://www.yourmechanic.com/article...-blake-griffin Seeing quite a few PCM failures on the diesels and it's been suggested the alternators are putting out too much AC voltage, which messes with the Dodge PCMs as well as making the auto. transmissions downshift for no reason.
__________________
1992 Bravada, 201K, stock 1997 Bravada, 101K, stock...was "called away" "Cornbread Red", 2001 Dodge 2500,4X4,HO Cummins Diesel,QC,SWB,6spd.,Banks boost&pyro,US Gage fuel press.,Edge Drag Comp,4"exh.,cowl hood, bhaf, black Holley pump, 140gph...13psi WOT, Vulcan Big Line, kevlar/ceramic single disc clutch, cheapo fuel cooler, 8x.010" vco injector nozzles, Cat turbo 62-65-.70A/R, 497hp 1089 tq 8/25/14 Time to turn so's you don't burn.
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