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#1 |
Future TOTM Winner
Join Date: Aug 2006
Location: Bulverde, TX
Posts: 2,692
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Make the bad noises go away! :whine:
I just rebuilt my transmission. Took me about a month to learn as I went! Finally put it back in the Blazer, filled up all the fluids, started it and immediatly heard a knocking noise. Thought it was the transmission
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72 Chevy CST K5 HIGHLANDER BLAZER Getting a 6.0,NV4500,NP205,14BFF (Currently laying all over the place in little pieces) 72 Chevy swb step-side "LS" 6.0 Here's a build thread of sorts 2002 HD2500 Crew Cab, 8.1L Allison 4x4 Daily Driver Check it out www.lsdyno.com Last edited by Critter; 12-02-2006 at 11:54 PM. |
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#2 |
Account Suspended
Join Date: Nov 2004
Location: Deer Park, Tx.
Posts: 2,524
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Re: Make the bad noises go away! :whine:
Pull your plugs and check them to see if you have excessive blowby on one of the cylinders or after you run it for a bit shoot it with a digital thermometer to check cylinder temperature difference if one cylinder is dead or do a compression test on the motor. You can rent a tester I believe from an auto supply store.
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#3 |
The LuvShack Garage
Join Date: Jan 2004
Location: Maple Grove, TN (West Side)
Posts: 30,477
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Re: Make the bad noises go away! :whine:
Man that really does suck, here's hoping for the best
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Owner/Op: "TN Classic Transport Carriers" The Toy: "Square Vette" 72 Hybrid Blazer Toy Barn: "LuvShack" 40 x 60 x 20 Shop Tow Piggy:"Maddy" 88 Silverado 3500 Hauler: "Feathers" 14 Aluma 8218T |
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#4 |
its just $$$$$
Join Date: Jul 2003
Location: OK
Posts: 2,078
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Re: Make the bad noises go away! :whine:
this may sound really stupid, but.....check and make sure the torque convertor bolts are tight. if they are loose it will make a terrible noise that sounds like the motor knocking. cracked flex plate also will make a similar noise.
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#5 |
Registered User
Join Date: Mar 2001
Location: RADFORD, VA
Posts: 2,651
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Re: Make the bad noises go away! :whine:
Bagged74,I was thinking the same thing,I use to have a 74 blazer 4x4 and the torque converter bolts had came loose and it knocked pretty good,so I would too check those bolts.hope this helps.
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1964 BBC 402 4x4 ![]() ![]() ![]() ![]() |
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#6 |
Designated A-hole!
Join Date: Mar 2003
Location: South Mississippi
Posts: 36,450
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Re: Make the bad noises go away! :whine:
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"If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. ![]() We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck" |
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#7 |
I'm a poor spectator
Join Date: Aug 2006
Location: San Antonio, Tx
Posts: 2,287
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Re: Make the bad noises go away! :whine:
I have a compression tester if you need to borrow it. I work til 4 during the week.
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2006 Jeep Unlimited IMPACT ORANGE 1993 Chevy 2500 4x4 ExCab LWB 454/NV4500 Tow rig ![]() 1977 Ford F100 2x4 LWB 1st truck I owned, still have it!!! ![]() 1979 Ford F150 4x4 SWB Built Ford Tough!!! ![]() 1971 Chevy Blazer 350 / SM465 / NP205 UNDER CONSTRUCTION Soon to have a LQ4 6.0!!! |
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#8 |
SKINNY TIRES RULE!
Join Date: Sep 2001
Location: Bothell, WA
Posts: 11,049
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Re: Make the bad noises go away! :whine:
I'll quadurple the note about the TC bolts,
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bouncytruck 1972 K5 The Hauler 1994 K1500 Suburban The Daily2010 Kia Soul Wife's Ride2014 Fiat 500L |
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#9 |
Senior Member
![]() Join Date: Jul 2006
Location: Leander, Texas
Posts: 850
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Re: Make the bad noises go away! :whine:
Good chance it's the TC bolts. I had a '66 that had a BAD knock because of that.
If that's not it, you could have some stickiness in the valve train since it's been sitting so long. Through some Marvel's Mystery Oil in it if tightening the TC bolts doesn't help. Also, I've never seen loose TC bolts make oil come out of one side of the motor ![]() ![]() |
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#10 | |
Future TOTM Winner
Join Date: Aug 2006
Location: Bulverde, TX
Posts: 2,692
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Re: Make the bad noises go away! :whine:
Quote:
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72 Chevy CST K5 HIGHLANDER BLAZER Getting a 6.0,NV4500,NP205,14BFF (Currently laying all over the place in little pieces) 72 Chevy swb step-side "LS" 6.0 Here's a build thread of sorts 2002 HD2500 Crew Cab, 8.1L Allison 4x4 Daily Driver Check it out www.lsdyno.com Last edited by Critter; 12-04-2006 at 01:25 PM. |
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#11 |
Future TOTM Winner
Join Date: Aug 2006
Location: Bulverde, TX
Posts: 2,692
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Re: Make the bad noises go away! :whine:
Ok, I made the bad noises go away myself. I am a little embarrassed to say this but…first of all the oil spray was just black water vapor. There is so much junk in my old exhaust, it is blowing out black crap everywhere. Second, the knocking was in the distributor area and was easily fixed. I guess the little “Un-tightening Demons” came in and worked their magic while I wasn’t looking.
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__________________
72 Chevy CST K5 HIGHLANDER BLAZER Getting a 6.0,NV4500,NP205,14BFF (Currently laying all over the place in little pieces) 72 Chevy swb step-side "LS" 6.0 Here's a build thread of sorts 2002 HD2500 Crew Cab, 8.1L Allison 4x4 Daily Driver Check it out www.lsdyno.com |
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#12 |
I'm a poor spectator
Join Date: Aug 2006
Location: San Antonio, Tx
Posts: 2,287
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Re: Make the bad noises go away! :whine:
You sure are brave to admit that. Oh, and don't try to act like you fixed it all by yourself...without me you would of had to fetch the tools yourself.
__________________
2006 Jeep Unlimited IMPACT ORANGE 1993 Chevy 2500 4x4 ExCab LWB 454/NV4500 Tow rig ![]() 1977 Ford F100 2x4 LWB 1st truck I owned, still have it!!! ![]() 1979 Ford F150 4x4 SWB Built Ford Tough!!! ![]() 1971 Chevy Blazer 350 / SM465 / NP205 UNDER CONSTRUCTION Soon to have a LQ4 6.0!!! |
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