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Pontiac Sunfire Care and Maintenance

53 messages,  Last post on Nov 14, 2011 at 3:19 AM

You are in the Pontiac Sunfire Forum.

What is this discussion about? Pontiac Sunfire, AM General, Sedan

Messages Page 5 of 6

#37 of 53 1997 pontiac sunfire 2.2 with 70,000 miles please help by bottlefed23

Mar 03, 2009 (4:18 pm)

hi i hope to god someone can help me........ i have a 97 sunfire with a 2.2 and 70,000 miles on it ....its a great car....im having a problem with overheating....i replaced the thermostat then i had flushed the block and radiator with water getting all the old dex cool out...... still overheating....... so then i had replaced tempature sending unit........still reading hot about 225-230 on the gauge.........so then the only thing left would be the water pump so i replaced that also............when im driving it seems to overheat.....but if im at idle it dont wanna heat up to quick???? so i hard wired the fan directly to the battery .......still says its over heating.....i turn the heater on in the car and its not blowing super hot (like its overheating) but its warm so i open the overflow res. and the waters hot but not super hot like it be overheating???? can anyone please give me any info???? im thinking it maybe the actual temp gauge in the car .....can these go bad??????PLEASE HELP ME!!!!

#38 of 53 Re: sunfire coolant problems [dawnyadiesel] by bottlefed23

Mar 05, 2009 (8:07 pm)

Replying to: dawnyadiesel (Feb 13, 2009 10:37 am)
no the car dont over heat....i hooked a buddys snap on scanner on and drove around and the hottest it got was 223 degrees??? i dont know the nor temp range....... but its pissin me off something fierce....idk what else to do ....today i replaced the thermostat and temp sendin unit again and still the same......im ready to put a aftermarket gauge in it and see if thats the problem????does anyone know how to get all the air out of the block when you do a coolant change??whats the easiest way to bleed it?? thank you bunches......

#39 of 53 96 sunfire water pump by kkatgirl

Mar 21, 2009 (10:58 pm)

my water pump went out, i think ! is this going to be difficult and costly to replace?

#40 of 53 high Idle by jeffy_finch

Apr 24, 2009 (11:18 am)

I have a 98 sunfire convertible 2.4l, and i recently replaced the spark plugs, only now it idles 1500 rpm instead of the previous 1000 rpm. is this normal? if not How do i adjust the idle

#41 of 53 Re: 96 sunfire water pump [kkatgirl] by jeffy_finch

Apr 24, 2009 (11:18 am)

Replying to: kkatgirl (Mar 21, 2009 10:58 pm)
is it 2.2l or 2.4l?

#42 of 53 02 Sunfire Fuel Filter by kingstondan

May 20, 2009 (6:38 pm)

Hello
I have a 02 Sunfire SLX. I have found the fuel filter under the back of the car and it looks to me like its the original. I can access it just fine without lifting the car up but I'm a bit confused about how to disconnect it. I have the Haynes book and I have the just of it BUT looking at it I see the two nuts. I can't decide which one should turn and which should be held stationary.
Is the filter supposed to spin while I hold a wrench on the line to keep it from twisting?
Also what are my options if it doesnt want to budge? I have very little space to get a wrench in there and if the filter is supposed to twist theres not much room to do this by hand either.
Now I can make more space but theres some black box with hoses running into it. I have no idea what this thing is but it looks like one bolt will take it down.
Any tips would be great!

#43 of 53 Re: 1998 Sunfire/ Cooling system.....Help! [suzy33que] by shanekrenek

Apr 21, 2010 (12:45 pm)

Replying to: suzy33que (Jan 22, 2007 11:19 pm)
Did u get this problem figured out? Mine 02 2.2 is doing the exact same thing...I have done the exact same thing...

#44 of 53 Re: Heat Problems 2000 Sunfire [camandlissa] by shanekrenek

Apr 21, 2010 (12:54 pm)

Replying to: camandlissa (Jan 23, 2008 6:35 pm)
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?

#45 of 53 help! by hpack

May 15, 2010 (9:56 am)

what causes water to run out of the drain line of a radiator on a 2000 sunfire?? need answers asap! thanks

#46 of 53 over heating by shanekrenek

May 17, 2010 (7:18 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...

Messages Page 5 of 6

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