High Idle w/ AC

From Tune Ups to Oil Changes, maintenance related

Moderator: toayoztan

High Idle w/ AC

Postby jspeccelica » Wed Aug 11, 2004 7:34 pm

I know that when the compressor comes on, the car usually tends to up the idle a little to get a little more juice from it, when I idle w/o my AC on she idles fine at around 800-900 rpm, but once I turn on the AC it kicks up to 1900 rpm! Is this normal? It wasn't the case in my '91 GT...
Members don't see the above ad. Register now - it's free!
Red '91 ST185
I've spent most of my money on cars and women, the rest I've just wasted...
User avatar
jspeccelica
Club Member
 
Posts: 89
Joined: Mon Aug 09, 2004 2:24 pm
Location: Bay St. Louis, Mississippi/ Mooresville, North Carolina

Postby Gary » Wed Aug 11, 2004 7:43 pm

Mine goes up around 1700 rpm. (I have vac leak. :x )
There is an AC idle up control valve on the upper right corner of the engine above the distributor. It looks like adjustable screw with spring. You can adjust that.
See pic here
Image
Click on image for larger pic.
Last edited by Gary on Thu Aug 12, 2004 2:35 pm, edited 2 times in total.
93 ST185
Image
Gary
GTFour God
 
Posts: 6430
Joined: Sun Aug 08, 2004 1:03 pm
Location: Carolina

Re: High Idle w/ AC

Postby SLC Punk » Wed Aug 11, 2004 7:43 pm

jspeccelica wrote:I know that when the compressor comes on, the car usually tends to up the idle a little to get a little more juice from it, when I idle w/o my AC on she idles fine at around 800-900 rpm, but once I turn on the AC it kicks up to 1900 rpm! Is this normal? It wasn't the case in my '91 GT...

Mine does that too. I know that there is an adjustment, but I don't know what it is supposed to be at.
-Travis
1992 ST185- sold
2014 4Runner Trail
2018 Audi S5 Sportback
1978 F250-for sale
SLC Punk
Club Member
 
Posts: 275
Joined: Mon Aug 09, 2004 1:09 pm
Location: Maryland

Postby jspeccelica » Wed Aug 11, 2004 7:46 pm

I see said the blind man... thanks
Red '91 ST185
I've spent most of my money on cars and women, the rest I've just wasted...
User avatar
jspeccelica
Club Member
 
Posts: 89
Joined: Mon Aug 09, 2004 2:24 pm
Location: Bay St. Louis, Mississippi/ Mooresville, North Carolina

Postby Gary » Wed Aug 11, 2004 7:47 pm

The AC idle up controller (AC-VSV) raises the idle by letting air bypass the throttle when the AC compressor puts load on idling engine. I don't remember what stock setting is. Gotta check with the BGB.
93 ST185
Image
Gary
GTFour God
 
Posts: 6430
Joined: Sun Aug 08, 2004 1:03 pm
Location: Carolina

Postby zblu81 » Wed Aug 11, 2004 11:12 pm

i'm at 700rpm with warmed up engine no A/C. then 1200 with A/C on.
[b][/b]Greg
Lansing, MI
'92 turbo All-Trac
3" Exhaust, RC intercooler, ATS TD06-20g, stage2 clutch
zblu81
Club Member
 
Posts: 579
Joined: Sun Aug 08, 2004 4:40 pm
Location: Lansing, MI

Postby dlek00 » Thu Aug 12, 2004 12:43 am

yeah, mine jumps up to 1300 rpm's
Daniel Lek
Chicago, IL
2005 Civic EX
email: dlek00@yahoo.com
dlek00
Club Member
 
Posts: 102
Joined: Sun Aug 08, 2004 9:04 pm
Location: Chicago, IL


Return to General Maintenance and Repair

Who is online

Users browsing this forum: No registered users and 4 guests

cron