Welcome to Just Commodores, a site specifically designed for all people who share the same passion as yourself.

New Posts Contact us

Just Commodores Forum Community

It takes just a moment to join our fantastic community

Register

Surging Automatic Transmission

Harry Krishna

New Member
Joined
Oct 18, 2010
Messages
4
Reaction score
0
Points
0
Location
Frankston
Members Ride
VX 2001 Calais
Hi,
My 2002 Calais is surging and shuddering slightly when I am doing anything over 80 and usually only going up inclines. Dropping down to 3rd overcomes this and when on the flat I shift it back to Drive.

First question is what could be wrong and more importantly any idea on repair cost ($$ is tight at the moment !)

Second one is am I doing more damage dropping it down to 3rd to overcome the surging/shuddering ???

Cheers !
 

accentstencil

Well-Known Member
Joined
Jun 30, 2005
Messages
8,213
Reaction score
408
Points
83
Age
68
Location
Eschol Park, Sydney
Members Ride
WH II Caprice, 5.7 2017 Captiva.
It sounds like a bad spark plug lead or spark plug to me, most likely a lead.
 

som

New Member
Joined
Apr 12, 2011
Messages
400
Reaction score
2
Points
0
Location
thorneside qld
Members Ride
vt executive
i agree.almost certainly has to do with spark.consider buying yourself a good set of plugs and leads,maybe even coils and prevent yourself having a heart attack worrying about the possible cost of a new tranny.(i believe that you can check your plugs etc with a multimeter but i have no idea how,i'm sure someone else can offer some advice)
 

Mick1988

W.A. Cruise Moderator
Joined
Apr 6, 2008
Messages
786
Reaction score
11
Points
18
Age
32
Location
Perth, Western Australia
Website
www.sarichtechnology.com
Members Ride
Too many to list......
You can check the resistance of your leads with a multimeter. Plugs are cheap as might as well just replace them anyway if they've done more than 50,000km
 

teamboc8

New Member
Joined
Jul 18, 2011
Messages
3
Reaction score
0
Points
0
Location
Adelaide
Members Ride
vx executive s2 3.8L
Hi Everyone,
My vx does the same lagging,surging over 80kmh and at the slighest of inclines and alot of people have said about the leads plugs but in most cases is this the main cause? i'm thinking i'm due a tranny service but any opinion would be great.

Cheers Aaron
 

CAPRILICIOUS WL

New Member
Joined
Mar 17, 2011
Messages
517
Reaction score
3
Points
0
Location
Melbourne
Members Ride
WL CAPRICE
Hey bro,

Most Likely it's your torque converter locking up.

It will only happen when cruising at a constant speed in your case probably between the 78-83km range and will sometimes happen when you drive up a steep road.
And if you were to put ur foot down to let the transmission pass that range it feels like it's struggles to pick up speed and will make that noise.

Pop down to an auto transmission specialist and let them hear the sound they will be able to tell u If it is the torque converter for sure.

If it is will cost roughly about $700 to a crazy $2500 job.
So make sure u search around as many of them will wana rip you off telling u it's a very big job.
They have to pull the trans out to change the torque converter and will service it upon request also.

Above info is only from past experience and is for your reference to help u out so don't quote me on anything. :) lol

I hope Iv helped :)

Cheers.
Dave
 
Top