From park or neutral when I shift into gear, I hear a rattling sound.
02-04-2006, 01:35 AM
#1
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From park or neutral when I shift into gear, I hear a rattling sound. It goes away when I shift back into park or neutral. What the **** is it? 
02-05-2006, 12:52 AM
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Launching!
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Do you have aftermarket headers? The rattle could be from header bolts "loosenig" from the vibrations. If it is, also check for blown header gaskets (easy way to identify this is oil leaks).
I know every other time I make a run down the track I have to retighten my header bolts. Torque will literally rip them apart. Nowadays you can purchase those self-tightening bolts if you don't feel like tightening them every 4,000 miles or so.
I know every other time I make a run down the track I have to retighten my header bolts. Torque will literally rip them apart. Nowadays you can purchase those self-tightening bolts if you don't feel like tightening them every 4,000 miles or so.
02-05-2006, 01:01 AM
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Originally Posted by LT1 Guy
Do you have aftermarket headers? The rattle could be from header bolts "loosenig" from the vibrations. If it is, also check for blown header gaskets (easy way to identify this is oil leaks).
I know every other time I make a run down the track I have to retighten my header bolts. Torque will literally rip them apart. Nowadays you can purchase those self-tightening bolts if you don't feel like tightening them every 4,000 miles or so.
I know every other time I make a run down the track I have to retighten my header bolts. Torque will literally rip them apart. Nowadays you can purchase those self-tightening bolts if you don't feel like tightening them every 4,000 miles or so.
02-05-2006, 01:19 AM
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If the rattle is coming from the front end of the vehicle, it's most likely the header bolts. If not, hopefully, someone else will give their two cents. But the only rattling I've ever experienced in my 9 years of owning my LT1 are the header bolts.
Header bolts can "loosen" for several reasons: 1. As the headers get hot, it expands (since they are made out of metal); 2. The vibration your engine makes can loosen the bolts; 3. Constantly smashing on the gas petal will cause both 1. and 2. and consequently, other more costly repairs.
Although... I kind of find it hard to believe that stock exhaust manifolds would rattle out their bolts. It's always safe to check anyway.
I'm not sure how much the self-tightening bolts cost but the sponsers to the right of your screen should carry them.
Header bolts can "loosen" for several reasons: 1. As the headers get hot, it expands (since they are made out of metal); 2. The vibration your engine makes can loosen the bolts; 3. Constantly smashing on the gas petal will cause both 1. and 2. and consequently, other more costly repairs.
Although... I kind of find it hard to believe that stock exhaust manifolds would rattle out their bolts. It's always safe to check anyway.
I'm not sure how much the self-tightening bolts cost but the sponsers to the right of your screen should carry them.
02-05-2006, 01:22 AM
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Originally Posted by LT1 Guy
If the rattle is coming from the front end of the vehicle, it's most likely the header bolts. If not, hopefully, someone else will give their two cents. But the only rattling I've ever experienced in my 9 years of owning my LT1 are the header bolts.
Header bolts can "loosen" for several reasons: 1. As the headers get hot, it expands (since they are made out of metal); 2. The vibration your engine makes can loosen the bolts; 3. Constantly smashing on the gas petal will cause both 1. and 2. and consequently, other more costly repairs.
Although... I kind of find it hard to believe that stock exhaust manifolds would rattle out their bolts. It's always safe to check anyway.
I'm not sure how much the self-tightening bolts cost but the sponsers to the right of your screen should carry them.
Header bolts can "loosen" for several reasons: 1. As the headers get hot, it expands (since they are made out of metal); 2. The vibration your engine makes can loosen the bolts; 3. Constantly smashing on the gas petal will cause both 1. and 2. and consequently, other more costly repairs.
Although... I kind of find it hard to believe that stock exhaust manifolds would rattle out their bolts. It's always safe to check anyway.
I'm not sure how much the self-tightening bolts cost but the sponsers to the right of your screen should carry them.
02-05-2006, 01:25 AM
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Really? For self-tightening header bolts? Try ThunderRacing. My personal favorite. Here's the link to the bolts: http://www.thunderracing.com/catalog...vid=4&pcid=301
02-05-2006, 01:38 AM
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Originally Posted by LT1 Guy
Really? For self-tightening header bolts? Try ThunderRacing. My personal favorite. Here's the link to the bolts: http://www.thunderracing.com/catalog...vid=4&pcid=301
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02-05-2006, 11:54 PM
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It would really depend on the thickness of the gasket and the metal. I'd go with the longer 1" bolts first since it looks like you need the additional length for the locking mechanism.
02-06-2006, 10:53 AM
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check the header bolts but also if it sounds like its coming from under the car then check the cat. sometimes when they burn out the insides will break down and get trapped. not only do you get an annoying rattle but itll hurt perfomance too. best way to check is get a rubber hammer and smack the cat one time and if it rattles youve found the problem.
02-06-2006, 01:04 PM
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Originally Posted by borninatransam
check the header bolts but also if it sounds like its coming from under the car then check the cat. sometimes when they burn out the insides will break down and get trapped. not only do you get an annoying rattle but itll hurt perfomance too. best way to check is get a rubber hammer and smack the cat one time and if it rattles youve found the problem.
02-06-2006, 01:18 PM
#11
My car makes a rattling sound when I shift from P or N to Drive. It ended up being my flowmaster catback. The one pipe was rattling off of a brace towards the back of the car. Also I found that the muffler was hitting at places as well causes rattling noises.
03-04-2006, 03:18 PM
#13
i had alot of trouble trying to find some header bolts that didnt back out..i got those locking ones with the allen screw in the middle...didnt work..3 days later 2 of them had backed out and 1 completely came out...so i put arp stainless ones in there...those lasted about 2 weeks and then started to back out...so then i went to autozone and bought some 80 cent lockwashers...and they havnt backed out AT all for 5 months now...and my car is low and i bottom out every once in a while when im not paying attention or if im on a highway and theres a big hump
