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gu 4.2 aircon lifting engine revs 500 rpm????????
Posted: Tue Nov 10, 2009 12:44 pm
by Bingham
lads truck im cruisng in at minute and have had a quick look if i have overlooked somehting please add link...
i know revs will climb slightly but 500 fark me.. eg 800 -->1300.. is like auto throttle comes on on cruise and is a right pain in the ass... what would be the cause and how would one fix?
any help appreciated....
bingham
Posted: Tue Nov 10, 2009 7:58 pm
by JWB
on my gq there is a flat blade adjusting screw on the idle up gadget!
Not sure if the GU's are the same tho?
Posted: Tue Nov 10, 2009 8:35 pm
by tye1986
i would say they havent adjust the air con idle i think it works off vacuum it is on the side of the injector pump 2 10mm bolts crack them and slide it forward. thats if its the same as my gq after i turboed mine and turned the fuel up i had to adjust this....
Posted: Tue Nov 10, 2009 10:21 pm
by patrol man
tye1986 wrote:i would say they havent adjust the air con idle i think it works off vacuum it is on the side of the injector pump 2 10mm bolts crack them and slide it forward. thats if its the same as my gq after i turboed mine and turned the fuel up i had to adjust this....
yah, if it hasn't been set up right at the start you may not get enough adjustment from sliding the A/C idle up actuator along the injection pump on its mounting bolts,
if so you will need to adjust it at the back of the actuator as said.
the book spec for idle with A/C on is 1200rpm,
this in my opinion is way to high, try crawling through slow traffic and the A/C turns on and the car takes a lunge forward, it can scare the fxxk out of you.
I like to set them so the idle doesn't change up or down when the A/C cuts in and out.
Posted: Wed Nov 11, 2009 7:23 am
by Bingham
yes ok guys, in last while is has had a denco added and new alternator so weather somthing has been adjusted mistakenly.... not sure as never used to do 3 months ago. Shall get my mate to look at next week.. passing on your suggestions.
thanks
Posted: Wed Nov 11, 2009 5:11 pm
by vanbox
Bingham wrote:yes ok guys, in last while is has had a denco added and new alternator so weather somthing has been adjusted mistakenly.... not sure as never used to do 3 months ago. Shall get my mate to look at next week.. passing on your suggestions.
thanks
put all this time and research into your patrol and you not have had it go bang
Posted: Thu Nov 12, 2009 8:13 pm
by Bingham
yes sorted it guys as said a small flat blade and 8 ml locking nut on the vacuum unit... got it down now sits between 900-1000. will drop down further to 800 tomoz.
much easier to fix than i supsected!