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#1
12-04-2005, 08:35 PM
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!992 k1500 4.3 won't start
125k miles on 4.3 won't start, engine spins over good.Changed fuel filter, ignition module,rotor and cap.Timing chain does not appear to have jumped. Have good spark,can hear fuel pump start.Engine will spin good for 20 seconds and then back fire and start TB on fire.Can pour gas down TB and it does the same thing,and will not start,no codes on computer,thanks,Doug.
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#2
12-04-2005, 09:04 PM
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Re: !992 k1500 4.3 won't start
If it's doing that I would check the timing.
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Matthew Brough  1997 Geo Prizm -- 301,000 miles 2000 Honda Accord -- 225,000 miles 2004 GMC Yukon XL -- 223,000 miles 1987 Jeep Comanche -- 116,000 miles 
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#3
12-04-2005, 09:22 PM
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4.3
I put a timing light on it but the white line at tdc will not show. Do I have disconnect some brown wire that I can't find? Or should I still be able to see the white line,thanks.Doug.
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#4
12-04-2005, 10:59 PM
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Re: !992 k1500 4.3 won't start
it sounds like your timing is 180 degrees out
the same thing happened to me your firing order is 1-6-5-4-3-2 try crossing your plug wires on the distributor cap, to do that swap wire #1 with wire #4, then swap wire #2 with wire #5, the sawp wire #3 with wire #6. Remember, only swap the plug wires ends on top of the distributor cap, leave the ends hooked up to your spark plugs the same The only difference is I have a v8 in my truck but that should still work. Try it and see.
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1991 Chevrolet Silverado Mods: Flowmaster 40 series with no catalytic converter. Homemade intake (I sale these if you're interested TBI only) American Racing Outlaw II Wheels 15x10 out back and 15x8 in front. 94-98 Model Billet Grill Sony Cd player. 5" Autometer Tach More to come soon.....
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