Last post on Nov 14, 2011 at 2:19 AM
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Pontiac Sunfire, AM General, Sedan
#44 of 53 Re: Heat Problems 2000 Sunfire [camandlissa]
Apr 21, 2010 (11:54 am)
I am having the exact same problem on my 02...have changed thermostat, pump, flushed, was gonna do compression test this eve...(Head)...but found a post on here about the temp sensor...gonna change it and level sensor...did u figure out the issue?
May 15, 2010 (8:56 am)
what causes water to run out of the drain line of a radiator on a 2000 sunfire?? need answers asap! thanks
May 17, 2010 (6:18 am)
I finally figured this thing out...greater innovation by GM! :-p...I filled overflow, pulled bleeder screw on heater hose line (driver's side of engine on mine), and kept filling till water ran out. put bleeder back in... keep refilling till stands full for five minutes...I also "pumped" top radiator hose a little occaisionally to help push out air...I then started and let run for 15 minutes refilling when water level dropped, which it didn't much...some of this description is found in owners manual under overheating...mine has been fine now for a week...before it would heat up in 5 minutes...btw, it was spilling over before...
#47 of 53 Re: 1997 pontiac sunfire 2.2 with 70,000 miles please help [bottlefed23]
Jan 02, 2011 (12:44 pm)
Check/replace radiator fan relay. It is in the black box under the hood.
#48 of 53 Radiator cooling fan inoperative
Jul 14, 2011 (9:24 pm)
My wife has a 2002 Pontiac Sunfire the radiator cooling fan has stopped working. After switching the relay switch out it still doesn't work. Can anyone tell me what I should try next before replacing the fan or motor.
#49 of 53 Re: Radiator cooling fan inoperative [malibu2005]
Jul 29, 2011 (12:12 pm)
What you can do is find a way to hook up the positive and negative leads from your battery to the fan motors positive and negative leads. if you unplug the radiator fans power you should be able to try it. careful that you are only doing the positive negative leads or you could take out the relay. if it cuts on then its something other than the fan motor itself. Like a broken wire not allowing power to reach it. but if it does NOT cut on, then it is the fan motor. they are usually 20-40 bucks and real easy to replace. only replace the fan motor not the whole radiator fan assembly, those are way more money and actually harder to replace lol.
#50 of 53 Re: Radiator cooling fan inoperative [loganhankins]
by Claire@Edmunds HOST
Jul 30, 2011 (8:48 pm)
Thanks for the walkthrough on that, loganhankins! Hope to see more of you around here.
Automotive News & Views | Coupes & Convertibles
#51 of 53 Re: Radiator cooling fan inoperative [loganhankins]
Jul 30, 2011 (9:20 pm)
Thanks for the info I really appreciate it.
#52 of 53 2000 pontiac sunfire w/ engine cooling fan issue
Nov 13, 2011 (11:07 am)
My father has a 2000 Pontiac Sunfire and the engine cooling fan stopped working! Any suggestion?
#53 of 53 Re: 2000 pontiac sunfire w/ engine cooling fan issue [mimisofly]
Nov 14, 2011 (2:19 am)
My wife has a 2002 sunfire we had to replace the relay switch twice I would start there.