Annoying sounds, please help

nickgt5.0

New Member

Jan 16, 2007

96

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Snohomish

Mar 20, 2007

#41

• Mar 20, 2007

• #41

lol well sounds like an easy fix for you

 

D

Dante30

New Member

Jul 16, 2005

34

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0

San Diego

Mar 21, 2007

#42

• Mar 21, 2007

• #42

My 94gt does the same thing,I do believe it is detonation. I have not been able to get rid of it from my car. I have about 150k on the engine, still runs good except for that. I have changed the act sensors and swaped out maf sensors. Cleaning it helped a little. Over time the problem has gotten worse. I have the simple typical bolt-ons, car does not check-eng-light, and has always passed smog. I live in So Cal and we have 91 octane. My next move is to try to go with a better maf, and to try to clean out the egr valve. I suspect that if it is dirty w/ carbon build-up, it could function incorrectly.. I don't really know what else to try myself, If you get it fixed, Please let me know how!!!

Dante'
94'gt w/ pulles ,alum. driveshaft, mac shorties, flows, 3.55 out back, cai

 

vladasap

Member

Apr 26, 2006

294

0

16

nyc, ny

Mar 29, 2007

#43

• Mar 29, 2007

• #43

dude i had the same exact problem n i couldnt figure it out for days
it was my harmonic balancer
once the rubber slips the outter ring with the timing numbers actually hit my water pump pulley (ye i had to buy a new water pump pulley from bbk sine mine got wrecked)
check it out sounds exaclty like the prob i had ... if not good luck
ps- wouldnt drive the car like that imo

 

DoubleAgentMan

Founding Member

May 2, 2002

151

0

16

South Texas

Mar 29, 2007

#44

• Mar 29, 2007

• #44

Sounds like the only thing left on the list of possibilities is the carbon build up...

Any one done an engine top end cleaner like "sea foam" or other??

My brother had a 95' GT that did the same thing.We even went so far as retarding the time to *8 which helped some but was still there.The only thing we never got to try out before he sold it was the engine cleaner and the act...

Just a thought to throw in with the rest...Good luck man.

 

vp6799

New Member

Aug 15, 2006

124

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0

Massachusetts

Mar 29, 2007

#45

• Mar 29, 2007

• #45

gimmie a until tomorrow. I just tried the seafoam trick. I let it suck in through the vacuum line at the brake boaster. Let it sit for 15 min and then started it. Alot of crap came out. Taking it to work tonight so i'll listen for the sounds.

 

C

cbarr300

Member

Jun 6, 2006

746

0

17

goose creek, SC

Mar 29, 2007

#46

• Mar 29, 2007

• #46

have you tried twisting your dizzy counter-clockwise? If it goes away then it's def. detonation.

Put your car in 5th gear while you're going at a low speed and floor it. That puts a lot of load on the engine and if it's detonation you'll def. hear it.

 

vladasap

Member

Apr 26, 2006

294

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16

nyc, ny

Mar 29, 2007

#47

• Mar 29, 2007

• #47

check harmonic balancer
mine took a dump on me and the outter ring was hitting the water pump pulley at high rpm's
keep us posted n good luck

 

vladasap

Member

Apr 26, 2006

294

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nyc, ny

Mar 29, 2007

#48

• Mar 29, 2007

• #48

i already mentioned this yest. didnt i??
ooops

 

vp6799

New Member

Aug 15, 2006

124

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0

Massachusetts

Mar 30, 2007

#49

• Mar 30, 2007

• #49

I do believe SeaFoam did the trick for me. I didn't hear the noise going to and from work. Gonna take it for a nice ride today to make sure. There was some nasty crap that came out of the exhaust. Might do it again to make sure it's clean.

Vic

 

nickgt5.0

New Member

Jan 16, 2007

96

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Snohomish

Apr 2, 2007

#50

• Apr 2, 2007

• #50

well i forgot about this thread lol but yeah i just did a new harmonic balancer about a month ago to stop my shake problem and the noise happened before and after that so ill try seafoam.

 

vp6799

New Member

Aug 15, 2006

124

0

0

Massachusetts

Apr 2, 2007

#51

• Apr 2, 2007

• #51

nickgt5.0 said:

well i forgot about this thread lol but yeah i just did a new harmonic balancer about a month ago to stop my shake problem and the noise happened before and after that so ill try seafoam.

Click to expand...

Yea man, it worked for me. Still haven't gotten the noise.

 

nickgt5.0

New Member

Jan 16, 2007

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Snohomish

Apr 11, 2007

#52

• Apr 11, 2007

• #52

back to top

 

nickgt5.0

New Member

Jan 16, 2007

96

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Snohomish

Apr 11, 2007

#53

• Apr 11, 2007

• #53

where can i get seafoam at and how much?

 

R

RAD

New Member

Jun 16, 2006

167

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0

Apr 11, 2007

#54

• Apr 11, 2007

• #54

http://www.seafoamsales.com/buy.htm

 

nickgt5.0

New Member

Jan 16, 2007

96

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Snohomish

Apr 29, 2007

#55

• Apr 29, 2007

• #55

what do i need to do to set the timing on my car, stuff like unplug wires, vacumm hoses, etc.

 

S

sage2k

Member

May 23, 2005

645

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16

Baton Rouge, LA

Apr 29, 2007

#56

• Apr 29, 2007

• #56

Does it do it in neutral when you rev it up?
it does sound like bad pinging, if it doesnt do it in neutral it might very well be detonation
change your spark plugs, cheap and it might help

 

nickgt5.0

New Member

Jan 16, 2007

96

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Snohomish

Apr 29, 2007

#57

• Apr 29, 2007

• #57

i was with my dads friend that was a engine builder for nascar and he said its a ping and he said first thing we should do is reset the timing.

 

Joey5.0

Member

Feb 13, 2006

313

1

16

Usa

Apr 30, 2007

#58

• Apr 30, 2007

• #58

Go get some new plugs tommorow and we will time it at Wills.

 

nickgt5.0

New Member

Jan 16, 2007

96

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Snohomish

May 5, 2007

#59

• May 5, 2007

• #59

well i was at my dads and my dads friend had his timing light with him so we hooked it up and my timing was at 19, so we took it down to 13 and no more noise. thanks for all the help