My 95 Gt is pinging real bad any advice

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wildman87

New Member

Jan 9, 2010

13

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0

Apr 16, 2010

#1

• Apr 16, 2010

• #1

My 5.0 gt is pinging. the timing was set to like 0 so i moved it to 10 btdc where its supposed to be, pinging got lots worse, i have tried premium fuel and i checked my harmonic balancer and my mass air flow sensor. The egr seems to be working right also. I have set the timing to like 5 btdc so i could drive it with a little less ping. i tried seafoaming the intake with half a can im gunna use a full can tomarrow. i have heard that this was a common problem with these cars, if anyone has any advice it would be great. thanks

 

desertcox05

New Member

Oct 3, 2007

379

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south atlanta

Apr 16, 2010

#2

• Apr 16, 2010

• #2

you say you ck'd the hb but it sounds like it has slipped and is giving you bad timing readings.
you can verify by setting #1 to tdc and making sure the timing mark is on 0.
@ 0 timing i'd thing it would be running like poo.

 

alleymad95GT

Member

Jul 14, 2009

204

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16

Okemos, Michigan

Apr 16, 2010

#3

• Apr 16, 2010

• #3

Not to belabor the obvious, but...

Do you have any codes?

You are pulling the spout when adjusting the timing, correct?

You say you "checked" the MAF. Did you clean it?

You "checked" the harmonic balancer. Did you do as above and rotate the engine to #1 TDC and make sure the lines line up?

Could you have a vacuum issue?

Does it do this all of the time, or only at operating temperature?

Personally, my car will not run if I retarded my timing that much. I know because I have stalled it out while setting the timing before. I can get to like 7 degrees BTDC and it dies.

 

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wildman87

New Member

Jan 9, 2010

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0

Apr 16, 2010

#4

• Apr 16, 2010

• #4

I checked the balancer for tdc and pulled #1 plug. no codes. it only does it at operating temprature

 

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wildman87

New Member

Jan 9, 2010

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Apr 16, 2010

#5

• Apr 16, 2010

• #5

oh yeah and i pulled the spout when i timed it

 

Venom351R

Founding Member

Apr 27, 2002

4,548

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98

MAINE

Apr 17, 2010

#6

• Apr 17, 2010

• #6

Id replace the balancer does not take much to throw it off once that rubber starts to separate. Something seems to be throwing your timing off.

 

99FiveOh

15 Year Member

May 20, 2006

2,051

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99

J-Ville, FL

Apr 17, 2010

#7

• Apr 17, 2010

• #7

wildman87 said:

My 5.0 gt is pinging. the timing was set to like 0 so i moved it to 10 btdc where its supposed to be

Click to expand...

This is the magic answer to your query. The problem here is your engine was probably already timed to 10* but since the balancer is probably slipped, it was only "showing" 0. Now you say you have it set to 5 which is probably more like 15 in which case 99% of these cars will ping. The most I could ever get away with was 12 on a good running car.

How old is your balancer? Have you ever replaced it?

 

3

3.8 Stock

New Member

Mar 28, 2010

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Ottawa

Apr 27, 2010

#8

• Apr 27, 2010

• #8

I thought I read a thread where the computer failed on one or two injectors so they would not open and the result was a lean mixture and the pinging noise. (The computer will fail, my 3.8 did and left 2 injectors open flooding bank 2 cylinders 4 and 5)

 

BlackVert

15 Year Member

Oct 3, 2003

5,589

9

98

Bethesda, MD

Apr 28, 2010

#9

• Apr 28, 2010

• #9

yep, check the balancer. also get some sea foam