The Mitsubishi Pajero Owners Club®

vmaxsnoopy · Posted: Thu Jul 14, 2005 8:59 Post subject: Idle speed - air con engaged

Hi All,

When air con engaged on my 91 2.5 SWB, engine revs rise to 1500, which I need to reduce. Can anyone please point me at the adjustment ?Thanks.

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tutor52 · Posted: Thu Jul 14, 2005 9:12 Post subject:

Sorry to point out, but the system is designed to do that. The extra revs "drive" the aircon system.

To the best of my knowledge your only options are to turn off the aircon, or live with it!!!

HTH

Dave

johndps · Posted: Thu Jul 14, 2005 9:36 Post subject:

Revs should rise a bit - coupla hundred revs.
you don't say what revs are at when idling with aircon off.

vmaxsnoopy · Posted: Thu Jul 14, 2005 10:46 Post subject:

I appreciate that the revs need to increase with air con engaged, but 1500 is a tad high, especially when stood at junctions etc. Normal idle speed is 750.

nick the nurse · Posted: Thu Jul 14, 2005 10:48 Post subject: revs

Mine does the same especially when its this hot standing in traffic ,out of town about 1.100 max ...wouldn't worry M8 Wink

vmaxsnoopy · Posted: Thu Jul 14, 2005 10:57 Post subject:

Thanks all, guess I will just have to live with it. Had it re-gassed and converted to R134 the other day, 3.2C at the vents now ! lovely.

Brownie · Posted: Thu Jul 14, 2005 15:32 Post subject:

Tickover on mine is 700ish and ups to 950 with aircon on.

So warm overnight lately have considered sleeping in the car with engine ticking-over and aircon on Wink

......blow the expense, problem is that the neighbours may not be too happy about it! Sad

glade-photographic · ** Joined: 07 Sep 2004 Posts: 100 Location: kent

Hi mate, the solonoid on the bulk head, just by the vin plate, operates a suction device on the back/side of the pump. This pulls a rod onto the throtle mechanism that increases the revs when required. It may go on and off as required. Less so in economy than the normal setting.

In the pic, is the adjuster for this. If you go too low it will unsettle the tickover big time. Normally it would rise from 750 to 1000 rpm.

HTH

Robin

bhrkp1 · Posted: Thu Jul 14, 2005 19:16 Post subject:

Hi I had the same with mine when frist got it, you need to adjust the idle rod as shown in the picture above as posted by Glade photo and this will sort it out

Rob

conatcamp · Posted: Thu Jul 14, 2005 21:51 Post subject: tickover

Mine idles at about 750 without climate on,and about 950-1000 with it on,depending on how hot it is outside Very Happy

helijohn · Posted: Fri Jul 15, 2005 0:23 Post subject:

Yup. can be sorted and 1500 revs is way too high.

vmaxsnoopy · Posted: Fri Jul 15, 2005 8:15 Post subject:

The picture was spot on, engine revs now 1000 aircon engaged, and 750 aircon out. Many thanks for the top replies.