75% chance your thermostat is stuck shut. Start with the simple things. >From: John Goubeaux <john@UCSB.EDU> >Reply-To: John Goubeaux <john@UCSB.EDU> >To: vanagon@GERRY.VANAGON.COM >Subject: Re: 90 cooling problem >Date: Fri, 20 Jul 2007 21:44:07 -0700 > >Well, I can reproduce the problem and see that after the car runs at >idle and slightly higher rpms for 4-5 minutes the cooling system >appears to pressurize, and along with the flashing red light and gauge >going to the top I can see coolant starting to trickle out from the >under the sensor where it goes into the reservoir. the temperature is >definitely rising and the reservoir is pressurizing and spilling over >into the overflow tank. > >If it was a head gasket wouldn't I see some other symptoms ? such as >vapor from the tail pipe ? > >-john > >neil wrote: >>a failed (closed) thermostat? >> >> >> >>On 7/20/07, John Goubeaux <john@ucsb.edu> wrote: >>>I have a situation where my 90 vanagon, after running for a few miles >>>began to exhibit "cooling system problems": >>>The temp needle went to the top and the red light began to flash. I >>>drove a little while longer and idled downhill home. >>>Coolant was leaking out of the (it looks like top of ) pressurized >>>coolant reservoir and as well as being under what looks like higher >>>pressure than normal. The car did not appear to be overheating. After I >>>stopped the engine I could hear pressure noises (what sounded like fluid >>>shifting around as the engine cooled off) >>> >>>Does this point definitively to a head gasket leak? If not what are the >>>other possibilities? My coolant reservoir had signs of leakage around >>>the top where the sensor fits into it prior to this and this was pointed >>>out to me by a mechanic. >>> >>>Thanks ! -john >>> >> >> >>-- >>Neil Nicholson. 1981 Air Cooled Westfalia. >> >>http://web.mac.com/tubaneil _________________________________________________________________ Need a brain boost? Recharge with a stimulating game. Play now! http://club.live.com/home.aspx?icid=club_hotmailtextlink1 |
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