1992 S10 Short bed with 4.3 Liter V6 has always had problem of taking so very long to warm up when cold out. Antifreeze checks out at -32 below protection. Good circulation and system has been bled/burped of air. Has new 195 degree theremostat, but still takes long time for temp gauge to move even a little bit and for heat to start. 4-5 miles at 50 mph at LEAST before any heat begins. Goin to take heater core cover off and inspect core location and vacuum control operations of valves. Is there anything under the hood I should check? thanks
2006-10-26 10:20:12 · 7 answers · asked by mombo323 2 in Cars & Transportation ➔ Maintenance & Repairs
The two main failures here are
1) air leak around the heater core plenum, allowing cold air to bypass the heater core,
2) the controller doesn't actually make a COMPLETE mode change, and allows some cool air to mix with the heated air. Needs adjustment or repair to fully close blend door.
Good Luck
2006-10-26 10:49:16 · answer #1 · answered by Ironhand 6 · 0⤊ 0⤋
does your vehicle have an electric fan? If so perhaps it is coming on when you start the vehicle. if this is the case...either the temp sending unit (there are 2) the one with 2 wires is bad and telling the fan to come on all the time...or...the fan relay switch is bad and turning on the fan upon start....this will deffinately cause that problem.
If it has a fan attatched to the engine...it would be a clutch fan...if the clutch is seized up...then it will be spinning too fast upon start up...easy to check...with the engine off...grab the fan and see if you can turn it...if you can't...the clutch on the fan is seized ...replace the clutch on the fan if that's the case.
Hope this helps
2006-10-26 10:31:37 · answer #2 · answered by Kenneth S 5 · 0⤊ 0⤋
The most over looked part that affects winter warm up and fuel milage is the fan clutch. if the fan will not turn with engine off or turns very hard you have a stuck fan clutch which will cause bad gas milage and slow warm up because it is drawing more air through radiator than it should.
2006-10-26 10:29:14 · answer #3 · answered by Larry S Auto Service c 1 · 0⤊ 0⤋
That thermostat seems to me should have a lower temp rating. Like 170 or so. You may want to check on that.
You also may want to get your cooling system flushed. There could be a restriction somewhere.And yes it could be the heater core that's the culprit. Or the restriction could be elsewhere in the system. And even though it's been burped there could still be air trapped somewhere.
Get that puppy flushed!
2006-10-26 10:32:55 · answer #4 · answered by whtsthislif4 5 · 0⤊ 1⤋
yea for 1 try a 180 or lower theremostat, it helps the car/truck to warm up quicker, and in the morining letting your vehicel run for about 10 mins. will help make it last longer. the 1 thang that really kills your engine is jumping in, starting it up after sitting more than an hour, and takeing off. the oil needs time to pump to get to all parts of the engine.
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2006-10-26 10:32:44 · answer #5 · answered by Anonymous · 0⤊ 1⤋
many experts might argue that the effects of warming the engine reason merely as lots placed on on the engine as entering into it and going. i might propose that which you heat i for no better than 5 minutes till that's unbearably chilly. additionally using less warm temperatures Chicago stories in wintry climate i might propose 5w-30 considering which will enable for greater oil flow at decrease temperature. ensure you regulate back previously summer season however. My mom drives a sparkling 08 get away that makes use of 5w-20 all year so which you ought to be effective to apply the 5w-30 up till previous due spring or temps flow approximately seventy 5. wish i ought to be of a few help happy holiday journeys!!!
2016-11-25 22:13:03 · answer #6 · answered by rudicil 4 · 0⤊ 0⤋
check fan clutch. Maybe turning when it should not.
2006-10-26 10:27:04 · answer #7 · answered by Anonymous · 0⤊ 0⤋