Help: my cars confused

Reply Subscribe

Thread Tools

Search this Thread

Apr 17, 2006 | 09:02 AM

Smitty1171987

Thread Starter

Junior Member

Joined: Jul 2005

Posts: 26

Likes: 0

From: michigan

Help: my cars confused

ok here it what is going on, i have a 87 gtu and when i first start it when it is cold it runs around 1200 rpm, but let it sit for about a minute or 2 it jumps up to 1500rpm, then after another couple of minutes it jumps up to 2500 and doesnt go back down until after i shut the car off and restart it. please help

Apr 17, 2006 | 10:12 AM

ROTARYROCKET7

Eats, Sleeps, Dreams Rotary

Joined: Jun 2005

Posts: 3,154

Likes: 1

From: Queens, NYC

87 gtu? i thought GTU's came in s5 no s4.

Dunno bout the idle sowwy

Apr 17, 2006 | 10:26 AM

Goofy

Rotary Enthusiast

Joined: Feb 2006

Posts: 886

Likes: 0

From: USA

S4 had the 'GTU', S5 had 'GTU' and 'GTUs'.

TPS? Thermowax?

Apr 17, 2006 | 10:35 AM

SureShot

Seduced by the DARK SIDE

Joined: Apr 2001

Posts: 7,323

Likes: 2

From: Orange Park FL (near Jax)

Or - a vac leak..

Apr 19, 2006 | 09:56 AM

Smitty1171987

Thread Starter

Junior Member

Joined: Jul 2005

Posts: 26

Likes: 0

From: michigan

thank you all, i am not totally sure what model i just no that it has 4 piston brakes, its n/a with a very good lsd, the car was repainted and all the badges are gone