engine chatter after 3.4 pulley install - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

Reply
 
 
 
Thread Tools Search this Thread
Old 10-12-2005, 12:00 PM   #1
Junior Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jan 2005
Location: wpb fl
Posts: 25
Thanks: 0
Thanked 0 Times in 0 Posts
earthmover101 is on a distinguished road
Default engine chatter after 3.4 pulley install

just installed a 3.4 sc pulley and am getting chatter on acceleration. is this due to the stock pcm? mods are cai, 180 stat, 104 autolites and 3.4 pulley. intense pcm is on the way along with hp tuner vcm program.

steve
earthmover101 is offline   Reply With Quote
Old 10-12-2005, 12:03 PM   #2
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default Re: engine chatter after 3.4 pulley install

Quote:
Originally Posted by earthmover101
just installed a 3.4 sc pulley and am getting chatter on acceleration. is this due to the stock pcm? mods are cai, 180 stat, 104 autolites and 3.4 pulley. intense pcm is on the way along with hp tuner vcm program.

steve
Would you say chatter or belt slipping?
BillBoost37 is offline   Reply With Quote
Old 10-12-2005, 12:33 PM   #3
Junior Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jan 2005
Location: wpb fl
Posts: 25
Thanks: 0
Thanked 0 Times in 0 Posts
earthmover101 is on a distinguished road
Default

I dont think its slipping. wouldn't that be more of a squeal? sounds like an engine with low octane gas i run 94.


steve
earthmover101 is offline   Reply With Quote
Old 10-12-2005, 12:36 PM   #4
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Describe what your Tach and Boost gauges are doing when this occurs.
willwren is offline   Reply With Quote
Old 10-12-2005, 08:08 PM   #5
Senior Member
Posts like a Camaro
 
Join Date: Apr 2005
Location: montreal, Canada
Posts: 1,108
Thanks: 0
Thanked 0 Times in 0 Posts
mike_peperni is on a distinguished road
Default

if you feel like the engine is losing power compared to stock its probably Knock retard,

mine do this the first 15 minute and then replace and now feel very good, be sure you are not sucking hot air with your intake.

If you have a short CAI i suggest a heat shield at least if its not already done, what i did is a Fender well intake and i have no problem since.

It can be also your belt like Willwren said. If you dont see the boost gauge go high.

With the 3.4 i go at the end of the "yellow part of the guage".

If you have normal boost , i will tell you what members here told me when i install mine , scan the car if you can, this way you will see " live" whats happening.

Good luck

ps.. you will like that extra boost.
mike_peperni is offline   Reply With Quote
Old 10-12-2005, 09:44 PM   #6
Senior Member
True Car Nut
 
Join Date: Jan 2004
Location: Lakeville, MN
Posts: 4,328
Thanks: 0
Thanked 1 Time in 1 Post
fantastic88 is on a distinguished road
Default

Thats odd. Maybe you should torque you're tensioner or SC pully to make sure their snug.
fantastic88 is offline   Reply With Quote
Old 10-14-2005, 03:05 PM   #7
Junior Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jan 2005
Location: wpb fl
Posts: 25
Thanks: 0
Thanked 0 Times in 0 Posts
earthmover101 is on a distinguished road
Default

I received my intense pcm and the problem seems to be less noticable. If i accelerate lightly around 30-40 i hear the knocking. If i press 3/4 down either I cant hear it because of the supercharger whine or it fixes itself. My boost goes up to the yellow also.
earthmover101 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
CTS engine chatter. Custom88 Your Other Rides: Pics & Videos 27 12-18-2007 12:20 AM
Chat.... Cha cha chatter..... bandit Lounge 4 08-26-2006 10:39 PM
Wheel chatter under moderate to heavy acceleration 98seGuy 1992-1999 13 04-25-2006 09:08 AM
engine chatter after 3.4 pulley install earthmover101 1992-1999 1 10-12-2005 12:04 PM
Taylor D's Pulley Install....I HATE PULLEY SWAPS!!! dbtk2 Performance, Brainstorming & Tuning 13 08-27-2003 12:30 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 07:36 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.