noise just before shift - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Oldsmobile When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made.

Reply
 
 
 
Thread Tools Search this Thread
Old 01-23-2014, 04:45 AM   #1
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Mar 2013
Location: Florida
Posts: 206
Thanked 0 Times in 0 Posts
johnblazer johnblazer johnblazer johnblazer johnblazer johnblazer johnblazer johnblazer johnblazer johnblazer johnblazer
Default noise just before shift

Hey guys,
1997 olds 88 3.8 67k


while driving in the cooler weather, I've noticed a sound, right before transmission shifts...it only last for like a half a second, thinking it may be a spark knock due to engine timing change before it shifts


pull out of drive way,,, from 1st to 2nd, then from 2nd to 3rd I hear a spark knock? lifter noise? just before it begins to shift.. maybe a half second noise... and will do it on each takeoff until warmed up... anyone ever hear this type of noise? not all that loud, you have to listen for it or never notice
johnblazer is offline   Reply With Quote
Old 01-23-2014, 07:24 AM   #2
Senior Member
True Car Nut
 
jwfirebird's Avatar
 
Join Date: Dec 2009
Location: western,ny state
Posts: 9,616
Thanked 563 Times in 481 Posts
jwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond repute
Default

alot of engines do that the oil needs to warm up to extend the lifters out all the way
jwfirebird is offline   Reply With Quote
The Following User Says Thank You to jwfirebird For This Useful Post:
Soft Ride (01-23-2014)
Old 01-23-2014, 07:41 AM   #3
Senior Member
True Car Nut
 
Soft Ride's Avatar
 
Join Date: Jan 2012
Location: BC Canada
Posts: 3,591
Thanked 341 Times in 303 Posts
Soft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud of
Default

John I noticed u are in Florida, what temps are cool?
When I first got my Pk ave at 75k miles, i also noticed the same sort of thing.
I did a tune up with iridium plugs, ngk wires, and it idled perfectly now.
When I went to Mobil 1 10w-30 synthetic there still was some valve train noise.
I then added a bottle of lubegard bio engine treatment, noises be gone..
LUBEGARD BIO-TECH Engine Oil Protectant
I generally let the car warm to 125F before driving off, and all is well now.
From time to time I use chevron techron concentrate fuel additive to keep valves clean as well.

Last edited by Soft Ride; 01-23-2014 at 07:44 AM.
Soft Ride is offline   Reply With Quote
Old 01-23-2014, 12:01 PM   #4
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Mar 2013
Location: Florida
Posts: 206
Thanked 0 Times in 0 Posts
johnblazer johnblazer johnblazer johnblazer johnblazer johnblazer johnblazer johnblazer johnblazer johnblazer johnblazer
Default

Thanks, I though it sounded more like a lifer noise...


temps in Florida were a frosty 28 this morning in central areas... but suppose to bounce back to around 60 today and freeze again tonight
johnblazer is offline   Reply With Quote
Old 01-23-2014, 12:06 PM   #5
Senior Member
True Car Nut
 
jwfirebird's Avatar
 
Join Date: Dec 2009
Location: western,ny state
Posts: 9,616
Thanked 563 Times in 481 Posts
jwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond repute
Default

while im not a fan of synthetics thats a discussion for another thread, i would just say make sure its a quality brand because that will give you lifter tick sometimes too, or as you are getting close to the oil change interval.

it would feel like a heat wave if it was 30 here
jwfirebird is offline   Reply With Quote
The Following User Says Thank You to jwfirebird For This Useful Post:
johnblazer (01-23-2014)
Old 01-23-2014, 12:17 PM   #6
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Mar 2013
Location: Florida
Posts: 206
Thanked 0 Times in 0 Posts
johnblazer johnblazer johnblazer johnblazer johnblazer johnblazer johnblazer johnblazer johnblazer johnblazer johnblazer
Default

I am using synthetic oil....


also, it sure feels cold at 28 in Florida.. have not turned on the heat so far this winter!
johnblazer is offline   Reply With Quote
Old 01-23-2014, 12:34 PM   #7
Senior Member
True Car Nut
 
jwfirebird's Avatar
 
Join Date: Dec 2009
Location: western,ny state
Posts: 9,616
Thanked 563 Times in 481 Posts
jwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond repute
Default

to each his own but i have probably put about a million miles on just my drivers over the years(across several cars) and always get the best results just using regular valvoline. changed every 5k. the grand prix i had i put over 300k on it and never had to get into the engine. except for the last few years the cars were designed to run this so anything else is wasting money at least and the high mileage type made my car run worse. my yukon i got at 160k and it knocked warming up so i put seafoam a week or two before a couple oil changes and now it rarely does it even when its -8 here
jwfirebird is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Performance Shift/Normal Shift DarkShadow 1992-1999 2 01-10-2007 09:16 AM
Vibration/Shaking before shift at WOT jhp027 1992-1999 1 05-02-2004 04:09 PM
Difference between Performance shift and Normal Shift CraZyDriVer868 Performance, Brainstorming & Tuning 16 10-18-2003 09:15 PM
Performance Shift vs. Normal Shift BonneAlien 1992-1999 2 03-15-2003 01:49 PM
help with error codes before I make before and after marks.. delta88 1992-1999 22 02-24-2003 12:17 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 02:31 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.