

| Subject: | Re: 91 GL running hot all of the sudden |
| From: | Motlagh, John N [GMG] |
| Date: | Mon, 25 Aug 2003 15:41:48 -0500 |
With all this chatter about running hot, does anyone have insight on what the cockpit coolant temp indicator should read? Mine consistently reads just above the overheat light, then the radiator fan kicks in, I know the whole system works because I had a split hose and the indicator when up, the light and buzzer came on. John N. Motlagh, MBA, PMP Sprint MCS PCS: 817-680-5001 Fax: 817-887-2374 Page: 8176805001@messaging.sprintpcs.com WWW: http://www.sprintbiz.com/solutions/mobile -----Original Message----- From: John Rodgers [mailto:j_rodgers@CHARTER.NET] Sent: Monday, August 25, 2003 3:22 PM To: vanagon@gerry.vanagon.com Subject: Re: 91 GL running hot all of the sudden You have a leak!!!! Also, the cooling system is connected to the AC so the radiator cooling fan will come on when the AC is turned on. Also, the Idle stabilizer system will kick up the idle rpm with the AC on to handle the added load created by the AC being "ON" and so the engine won't stall at idle speeds such as at stop lights, etc. That increase in idle rpm needs additional cooling in hot weather. Thus the radiator cooling fan kicks in. Regards, John Rodgers 88 GL Driver Dan Haydon wrote: >Hi, > >Just a few days ago my wife tells me that the van has been "running hot", and that she's been driving with the heater on to keep the needle from going too high. So I started it up yesterday and it heated up pretty fast....as it approached the led it moved above it and the fan never turned on. I turned on the AC and the high speed fan kicked in. > >I'm thinking maybe thermostat or temp senders. Is there a way to check for blockage of coolant flow? > >Also, when she was out on the road she emptied a bottle of water in the resevoir, so I need to drain and add more coolant. Is there a bleeder valve somewhere? > >Thanks for any direction on this one guys. > >Dan Haydon > > >
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