1989 Escort GT Idles High in Gear - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
ยป Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Cars and PAG Vehicles > Ford Escort | Ford Laser | Ford TX3 | Ford Sierra | Mercury Capri
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

Ford Escort | Ford Laser | Ford TX3 | Ford Sierra | Mercury Capri Forum for discussion of the Ford Laser, Ford TX3, Ford Escort, Ford Sierra and Mercury Capri.

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 11-22-2009, 01:54   #1 (permalink)
Registered User
 
Join Date: Nov 2009
Location: Victoria, BC
Posts: 14
1989 Escort GT Idles High in Gear

I just noticed this issue today.

When the car is in neutral, with or without the clutch depressed, it idles normally (little bit of variation but nothing to be concerned about). When I put the car in gear (clutch depressed obviously) it revs up to about 1500 RPM. Any idea what might cause this?

I just had the car into the shop for a charging system check, any chance they goofed something?
Tuneman1984 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 11-22-2009, 13:36   #2 (permalink)
Registered User
 
Sterling_Six's Avatar
 
Join Date: Aug 2008
Location: Green Bay, WI
Posts: 1,135
Re: 1989 Escort GT Idles High in Gear

Quote:
Originally Posted by Tuneman1984 View Post
I just noticed this issue today.

When the car is in neutral, with or without the clutch depressed, it idles normally (little bit of variation but nothing to be concerned about). When I put the car in gear (clutch depressed obviously) it revs up to about 1500 RPM. Any idea what might cause this?

I just had the car into the shop for a charging system check, any chance they goofed something?



Hello and good day:

Do you have any CEL (check engine light)???

This is a classic symptom of the VSS:

Vehicle Speed Sensor (VSS)

The Vehicle Speed Sensor (VSS) is a small signal generator that is turned by a gear inside the transmission assembly. The Vehicle Speed Sensor produces 8 pulse per rotation which a stock computer assumes 8000 pulses per mile. The Vehicle Speed Sensor (VSS) is a variable reluctance sensor that generates a waveform with a frequency that is proportional to vehicle road speed. When the vehicle is moving slowly, the sensor produces a low frequency signal. As the vehicle speed increases, the sensor produces a higher frequency signal The Vehicle Speed Sensor (VSS) supplies this signal to the components that require vehicle speed information including the speed control amplifier for cruise control equipped vehicles and computer. The computer uses the VSS signal for emissions control programs and speed limiters. The emissions programing can cause a manual transmission vehicle to stall out while decelerating
__________________
Good Luck and good repairing Sterling_6
"You know, just like in that Book, When Jesus beats up Moses to get Religion!!"
Sterling_Six is offline   Reply With Quote
Old 11-22-2009, 14:17   #3 (permalink)
Registered User
 
Join Date: Jun 2009
Posts: 162
Re: 1989 Escort GT Idles High in Gear

I doubt that your '89 has a VSS. I think that was before any of the Escorts had electronic speed sensors. I'm not very familiar with the GT, but my guess would be the throttle position sensor or which ever it has the idle speed control motor or idle air control valve. I have also seen a bad ECU cause idle speed problems.
FordMan59 is offline   Reply With Quote
Old 11-22-2009, 15:59   #4 (permalink)
Registered User
 
Join Date: Nov 2009
Location: Victoria, BC
Posts: 14
Re: 1989 Escort GT Idles High in Gear

Thanks for the replies. I've read about Idle Air Control Valve issues on Escorts so it might be that. Just strrange that it started yesterday suddenly. It's not a big issue since it's not revving that high, but I'll keep an eye on it.
Tuneman1984 is offline   Reply With Quote
Old 11-23-2009, 18:20   #5 (permalink)
Registered User
 
Sterling_Six's Avatar
 
Join Date: Aug 2008
Location: Green Bay, WI
Posts: 1,135
Re: 1989 Escort GT Idles High in Gear

Quote:
Originally Posted by FordMan59 View Post
I doubt that your '89 has a VSS. I think that was before any of the Escorts had electronic speed sensors. I'm not very familiar with the GT, but my guess would be the throttle position sensor or which ever it has the idle speed control motor or idle air control valve. I have also seen a bad ECU cause idle speed problems.





OMG you are Right "Ford", and Me Stuck on Stupid...LOL Its a Manual Tranny also...Forgive me.

The TPS, or MAS may then be the Little Bugger....
__________________
Good Luck and good repairing Sterling_6
"You know, just like in that Book, When Jesus beats up Moses to get Religion!!"
Sterling_Six is offline   Reply With Quote
Old 11-24-2009, 16:56   #6 (permalink)
Registered User
 
Join Date: Jun 2009
Posts: 162
Re: 1989 Escort GT Idles High in Gear

Quote:
Originally Posted by Sterling_Six View Post







OMG you are Right "Ford", and Me Stuck on Stupid...LOL Its a Manual Tranny also...Forgive me.

The TPS, or MAS may then be the Little Bugger....

Don't feel bad we all have those absent minded times. It just seems that mine last longer than most peoples!!! I wasn't sure about the GT and the VSS, but I knew my '88 Pony was a cable driven speedometer.
FordMan59 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Cars and PAG Vehicles > Ford Escort | Ford Laser | Ford TX3 | Ford Sierra | Mercury Capri



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

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 On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 09:24.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.