T O P I C R E V I E W
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sleeping stallion
Member # 8162
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posted
hey cafords its a 302 bored .40 over 308 165 afr h with 1.7 roller rockers stock valve covers holley intake 70 mm egr and tb f cam v1 vortech for about 6 lbs of boost summit racing 50 oz balancer stock dizy my problem is the first day i set time turned on right away idles great let it idle for good 10 min then cut it off. thengo to turn it back on and it just turns it wont turn on. let it sit for a day came back and fired right up then did the same i took the dizzy out and restabed it thinking it was timing fired right up and the same thing im getting 38 40 of fuel so fuel pressure im good any ideas ive read it can be a few things bent valves distrubter vac leaks which i checked for thanks in advance cafords
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sleeping stallion
Member # 8162
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posted
anyone
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5.0 LsX
Member # 10017
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posted
dizzy module?
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turbo50
Member # 6700
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posted
If it fires right up and idled good it isn't bent valves.
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JohnB
Member # 969
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posted
Have you checked spark after a restart attempt?
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LXjames
Member # 10791
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posted
Warm tfi module I'm betting. The get warmed up and basically over heat then you turn the car off and doesn't want to start then it sits an cools and works great again. Wierd thing is it won't die while running it just won't start once you turn it off. Had this problem before
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sleeping stallion
Member # 8162
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posted
thanks guys thats where i was stuck it idles great set timing at 10 and sits there idling at about 750 800 rpm thats all i have touched i will be changing out the dizy any sugestions
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speeddhb
Member # 6593
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posted
Ive had a "no start" several times after you put in a new combo, or cam or something else that alters airflow significantly. I think the stock computer goes through a "learning" process. All of my "no starts" would fire right up after I let it sit for bout 30 mnutes then after once or twice of doing that it would never do it again. I believe its "learning" [ 2013-05-01, 01:08 PM: Message edited by: speeddhb ]
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sleeping stallion
Member # 8162
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posted
so how do you fix the learning or what does it take to fix it
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warhorse58gt
Member # 7702
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posted
I start with module or coil. Seem like some thing is getting hot and not working. Then once it has cooled down it works again. I could of just told you that on the phone. If you every called.
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sleeping stallion
Member # 8162
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posted
man with work and all i dont get home till bout 7730 and havent had time to even touch the car im gonna check some stuff out today and get back with updates
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MACK.GT
Member # 10461
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posted
it could be a bad ignition coil, you can check it w a dvom or just replace it right quick with a known good one. or you can do a spark test , see if you have a strong or weak spark .
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sleeping stallion
Member # 8162
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posted
Update I change the dizzy to a known good one same thing fired up then turned it off to see if it would start again nothing. I took number 5 cyclinder wire off to see for spark nothing my guess is going to be the ignition coil it worked fine before the swap though
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turbo50
Member # 6700
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posted
Check all of your grounds!
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