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07-26-2007, 12:23 PM
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#1 |
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Excelsior, You Fathead.
Join Date: Jun 2004
Location: Valparaiso, In
Posts: 937
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2002 Sierra problem
Everytime it rains, the engine won't start. It will crank and crank but no spark. Last week, it started cutting out on the road for me after it rained the night before. It will even chug a little when its been sitting and is real humid out. I have gone through 3 dist. caps and I know it needs a tune up, but this is damn ridiculous. Its a 4.3 with 100,000 so I was going to go the plugs, wires, cap and rotor anyways, but I want to FIX it, not band-aid. Any clue? I was told the dist. cap was cracked once and that condensate was building up but how the heck do I fix this for good. I'm commutting an hour and a half each day in my Old Mans 454 SS so I need help before I loose all my money on gas.
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Go Navy. The Sea Is Ours. Budget 350 Build http://67-72chevytrucks.com/vboard/s...38#post2264638 |
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07-26-2007, 03:56 PM
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#2 |
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Hittin E-Z Street on Mud Tires
 
Join Date: Nov 2004
Location: Greenville, SC
Posts: 23,090
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Re: 2002 Sierra problem
I thought the newer 4.3's had coil packs for the individual plugs and the dizzy with cap no longer existed?
Anyway, something is getting wet? Check to see if your hood seal is good and maybe the comp. on the fenderwell is getting wet somehow? Tune-up is a good idea. Change the PCV too and fuel filter. Is it throwing any codes?
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Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride  American Born, Country by the Grace of God  1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! |
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07-26-2007, 07:25 PM
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#3 |
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Excelsior, You Fathead.
Join Date: Jun 2004
Location: Valparaiso, In
Posts: 937
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Re: 2002 Sierra problem
Nope, I have a distributor. I was reading that condensate will collect under the cap and cause this. What is a good fix for this.
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Go Navy. The Sea Is Ours. Budget 350 Build http://67-72chevytrucks.com/vboard/s...38#post2264638 |
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07-27-2007, 02:31 PM
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#4 |
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Registered User
Join Date: Aug 2002
Location: Crittenden, KY
Posts: 1,965
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Re: 2002 Sierra problem
Remove, wipe clean, inspect, reinstall with silicone!
Brandon |
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07-27-2007, 03:13 PM
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#5 |
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67 is sold
Join Date: Apr 2001
Location: Troy, Michigan
Posts: 6,733
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Re: 2002 Sierra problem
I agree.
Since you already plan to give it a full tuneup, do that as well. |
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12-20-2007, 09:36 AM
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#6 |
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Excelsior, You Fathead.
Join Date: Jun 2004
Location: Valparaiso, In
Posts: 937
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Re: 2002 Sierra problem
Shorted coil. Ha! Fixed and runs great, well until now. Service engine soon light came on and my mechanic friend said if it's not blinking probably a sensor. If its blinking, we have trouble. Anyone know what causes this usually?
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Go Navy. The Sea Is Ours. Budget 350 Build http://67-72chevytrucks.com/vboard/s...38#post2264638 |
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12-23-2007, 09:11 PM
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#7 |
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Registered User
Join Date: Feb 2007
Location: Austin, TX
Posts: 3,930
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Re: 2002 Sierra problem
I was gonna mention the coil but you beat me to it. I helped my friend with a honda that had the same issue. Cracked coil. Drove us crazy for a few days.
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12-24-2007, 02:29 AM
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#8 |
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chrome makes it go FASTER!
Join Date: Feb 2007
Location: Cleveland Tennessee
Posts: 2,884
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Re: 2002 Sierra problem
there are lots of things that cause service engine light to come on. Auto parts stores usually check for free.
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She can't cook and she won't clean. But she looks good in a skirt and she brings me beer. She can stay for now. EDIT:: But she left me anyway, So forget her. 1962 GMC Stepside V6 4 speed My rolling resto thread http://67-72chevytrucks.com/vboard/s...d.php?t=324226 My old farm truck http://67-72chevytrucks.com/vboard/s...=1#post3465005 |
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