2.55 Pulley Getting KR *Update* - Page 3 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 08-29-2007, 10:18 PM   #21
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Yea but knowing if it gets getting or worst with temp may tell us something.

Temp 77*F / Humidity: 70%

0-1 KR in 1st
1-5KR in 2nd

So it got worst after it got cooler...

Im going to keep it under 3/4 throttle until i get from work tomorrow and change the pulley back.
Then im going to test for KR again, Because i KNOW for a fact i got 0 KR anywhere before so im hoping for non now.

Then the long possess of finding what is making the KR yay...
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Old 08-29-2007, 10:31 PM   #22
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Quote:
Originally Posted by bandit

Then the long possess of finding what is making the KR yay...
your just experiencing what every SC owner does when they mod
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Old 08-29-2007, 10:34 PM   #23
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yea i know, but a good amount of what makes KR i have al ready check or ruled out.

So now im down to...
-Cracked manifolds
-other exhaust leaks
-SCer coupler? maybe?
-more Vac leaks?
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Old 08-29-2007, 10:48 PM   #24
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Have you removed and inspected your upper EGR tube for cracks? If not definitely do that. Check underneath the two brackets on both ends.

IIRC the 95 exhaust manifolds weren't as prone to cracking as the previous years. I could be wrong. Still a possibility though.
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Old 08-29-2007, 10:49 PM   #25
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Have you inspected the EM'*?

Have you eliminated cylinder carbon deposits?

The coupler has nothing to do with it.
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Old 08-29-2007, 10:54 PM   #26
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Pete. not i did not check that yet. i forgot about that being a problem. thanks

Wren. cylinder carbon deposits? i may sound dumb but... are you talking about like doing a C Foam treatment or something like that?
have not looked closely at the EM'* yet. i dont here anything i think.
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Old 08-30-2007, 11:46 AM   #27
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What else should i check for?

And just in case i find a EM leak... What can i use to temp patch it to see if it fixes the KR?
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Old 08-30-2007, 01:09 PM   #28
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On the carbon deposits..yes Seafoam.

On the EM cracks. The temporary fix is welding.
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Old 08-30-2007, 01:21 PM   #29
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Now on the Seafoam....

Anyone.. Is Seafoam Safe for the SCer?
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Old 08-30-2007, 01:50 PM   #30
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Seafoam is safe for the SC.
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