LT1-LT4 Modifications 1993-97 Gen II Small Block V8

what the fuck!

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Old Jun 13, 2006 | 12:14 PM
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Angry what the ****!

my car is running like ****!!!! it starts with no problem but runs like ****!! it has NO power..feels like its backfiring!?!?!? i filled it up sunday with 91 oct and i added some fuel injecter cleaner! car ran fine on monday monring then after work the car was making a ping some like i had 87 oct in it!! after the car warmed up it stoped! when i stared it on tuesday morning it was running ruff big time!! any ideas??? this sucksss i just had the car tuned up last month!

CAR IS NOW FIXED!!!!! belt sliped and hit the coil pack, cutting a spark wire!!!
new belt and wire, the cars is runing great again!!!!!!

Last edited by 95formulalt1; Jun 18, 2006 at 11:34 AM.
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Old Jun 13, 2006 | 12:20 PM
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and the belt is fucked up ! looks like its not sitting on there right! i am going need a new one!
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Old Jun 13, 2006 | 12:22 PM
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Sure you werent putting diesel in the tank Just saw your 2nd post...look for cracks in the serp belt if so replace could be causing it to move also a loose pulley which also could make the belt move could be messing up one of the things on your motor. Did you replace the belt when you got the under drive pulley?
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Old Jun 13, 2006 | 12:25 PM
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+!!!!!
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Old Jun 13, 2006 | 12:27 PM
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the belt IS moving!!! the belts new too under 10 months and less then 7,000 miles on it
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Old Jun 13, 2006 | 12:28 PM
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Yeah but your supposed to get the right size belt with a new pulley, longer or shorter I forget how it goes. Most pulleys come with the belt you need.
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Old Jun 13, 2006 | 12:31 PM
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the under drive pulley was on the car went i got it!! and the guy at the store got me ther belt so idk?!? mayb a new fuel filter?????
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Old Jun 13, 2006 | 12:36 PM
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There shouldnt be any reason for the belt to be off track. See whats up with that first. Could be the fuel filter if you got shitty gas (also if you filled up on a near empty tank all the sediment could have washed up and clogged your filter), or the pump. If you know how to check your fuel pressure you should do that. My friend checked it on his car and he had like 2 psi on his 90...which means new fuel pump. But his car started but would die almost right after. If your car stays running its more then likely the fuel filter or something to do with the belt?
SES light on? Also try to find out the code for the belt for the pulley. If the guy at the store wasnt told it had a pulley it could be the wrong belt.
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Old Jun 13, 2006 | 12:41 PM
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no SES, i told the guy it had a pully ( but i got the belt 10 months ago and i had no problem with) unit now lol!!!+ the guys at the auto part stores know nothing!!
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Old Jun 13, 2006 | 12:45 PM
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and the car stays running but like ****! lol its like the car is poping or something! myb i need some octan booster?? is it ok to add that if i have fuel injeter cleaner in there???
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Old Jun 13, 2006 | 01:00 PM
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Octane booster wouldnt really do much of anything that the fuel system cleaner hasnt already done. So it could be a array of things..from the fuel filter, possibly the fuel injectors, or something to do with the belt since its not throwing any codes. If the belt went 7k miles without a problem a pulley could be coming loose. Check all the pulleys by hand if one is loose to wobble then thats no good. Also start up the car and watch the pulleys see if any shake.
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Old Jun 13, 2006 | 01:04 PM
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pull the plugs and check them out. It sounds to me like you detonated a plug which would cause a misfire in your engine.
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Old Jun 13, 2006 | 01:06 PM
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ya its hard to see if its the pully or the belt! i was just out with the car runing for a few mintes....i am going to call the guy that works on my car..but he doesnt start work untill 6 pm
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Old Jun 13, 2006 | 01:08 PM
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brand neww plags..i just had the car tuned up!!! a full tune with plags wires ...
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Old Jun 13, 2006 | 01:22 PM
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How old are you by the way? Being a new driver you could have filled the car with diesel or even by accident if your not a new driver. My mom did that once and she was like 40.

Last edited by Bowtie Boy; Jun 13, 2006 at 01:40 PM.
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Old Jun 13, 2006 | 01:44 PM
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i am 20 and the gas staion i go to does not sale diesel lol i have been driving sicne 15 and i never had this promblem b4!! i had a 92 camaro and any and every part u can thing of went on it lol it had (when i got rid of it) 177.000 miles
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Old Jun 13, 2006 | 01:50 PM
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Whats it idle rpm at? When you rev it does it make any weird noises?
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Old Jun 13, 2006 | 01:53 PM
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i jsut got off the phone with russ the guy that does all my work and he said it could be a 1000000 things haha but it sounds like it could be an ingtion skip
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Old Jun 13, 2006 | 01:54 PM
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at idl its about 500-600rpm (like alwas)
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Old Jun 13, 2006 | 02:45 PM
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as anyone had this happen to them??
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