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Ideas for high temperature readings?? Posted by MI-Roger [Email]  (#882) [Profile/Gallery]
(more from MI-Roger) on Fri, 16 Jul 2010 10:49:11
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Early last week I had a situation where I experienced very sluggish acceleration due to what felt like transmission slipping. It happened twice within one day and during the second event I noticed the engine temp gage was reading very close to the red zone. Outdoor temps were in the upper 90's and I was in construction traffic (slow stop and go) both times.
I was leaving on vacation to Seattle the next day so Tuesday of this week I installed a new thermostat, new temp sensor, new coolant, and new upper radiator hose. All parts I had lying in my garage for future installation. Since the trany felt as if it was slipping, possibly due to high temperature readings messing with the transmission ECU, I also drained and re-filled the transmisison.
Wednesday everything was perfect. Thursday I drove to Lordstown OH and back in 95+ temperatures with no apparent problem. Upon my return and before going home I stopped at a local store to return an item then continued home. Part of this trip was short expressway, followed by a couple of miles of 45mph suburban driving. The car ran fine the whole trip but as I was nearly home I noticed the temp gage needle was again above the horizontal position. No difficulties with driveability this time.
I parked the car in my driveway and noted the sound of the cooling fan(s) running but I failed to visually verify if one or two fans were operating.
High temps, high humidity, moderate traffic speeds, A/C on Max, no driveability issues. Is there a problem? If so, where else would you look? Are fans relays a weak point? Can I "fool" the car into activating both fans to verify proper operation?
I am looking for ideas. TIA
2000 lpt Auto with 279,000 miles
posted by 198.208.25...
_______________________________________ Saabs owned: 2008 9-5 Aero Sedan, sold at 227K miles 2006 9-3SC 2.0T - Wife's daily driver 2000 Viggen Convertible - Sold May, 2022 1964 Quantum IV Formula Car - Retirement project 2000 9-5lpt Sedan, sold at 318K miles
, Fri, 16 Jul 2010 10:49:11 <-- Viewing This Message, Fri, 16 Jul 2010 12:31:54, Fri, 16 Jul 2010 13:57:00, Fri, 16 Jul 2010 16:06:26, Fri, 16 Jul 2010 14:03:50
, Sat, 17 Jul 2010 22:07:28
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