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06-02-2009, 10:55 AM
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#1
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Sliderule / Moderator
Join Date: Oct 2004
Location: Catawissa PA
Posts: 2,294
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AC blowing fuse.
2000 Chevy Tracker, 110K miles:
AC will run for anywhere from 1 minute to 30 minutes, then the fuse blows (25 amp fuse)
Replaced the relay, also pressure is good at 40 PSI. and temp out the vent is about 45 degrees.
Switch on dash seems fine, light come on when activated and stays on, I see constent power to the relay from the switch.
Any ideas what could be wrong that is causing this? Could it be one of the sensors or something in the compressor clutch?
__________________
93Z M6 Black: The 385 Lives! Supercharged, 3-core front mount intercooler, GTP heads, 3:73's, Street twin clutch, Jethot Longtubes, Mufflex 4" catback/spintech, S+W cage, Spohn Suspenion, Yada Yada Yada
1) Build it
2) Race it
3) Break it
4) Repeat!!!
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06-02-2009, 11:10 AM
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#2
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Join Date: Mar 2008
Location: Somerset, NJ
Posts: 4,223
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any spliced wires touching eachother? have you tried different amp fuses?
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Jon
1999 Trans am WS6
1996 Corvette LT4 6 speed
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06-02-2009, 01:02 PM
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#3
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Admin.
Join Date: Aug 2005
Location: Hamilton, NJ
Posts: 20,149
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Geez Sliderule, there are so many electrical parts now. 4wd or 2wd? 1.6 or 2.0?
Quote:
Originally Posted by madness410
have you tried different amp fuses?
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__________________
Vent Windows Forever!
The looser the waistband, the deeper the quicksand. Or so I have read.
Feather-light suspension, Konis just couldn't hold. I'm so glad I took a look inside your showroom doors.
Hey everybody, it's good to have you on the Baba-too-da-ba-too-ba-ba-buh-doo-ga-ga-bop-a-dop
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06-02-2009, 01:06 PM
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#4
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Ayatollah of Rock N Rolla / Admin
Join Date: Mar 2006
Location: Parts Unknown
Posts: 12,573
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Quote:
Originally Posted by BonzoHansen
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06-02-2009, 01:16 PM
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#5
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Admin.
Join Date: Aug 2005
Location: Hamilton, NJ
Posts: 20,149
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2000 4x4 2.0L. I bet the HVAC is all the same. GFL. And it still might be the comp.
Fig. Ground, A/C and Pressure Switches
Fig. Compressor Clutch and Condenser Fan
Fig. Power, Thermister, ECT Sensor and PCM(c) (2000)
Fig. HVAC Blower Control Schematics
http://www.autozone.com/autozone/rep...00c1528024e63b
__________________
Vent Windows Forever!
The looser the waistband, the deeper the quicksand. Or so I have read.
Feather-light suspension, Konis just couldn't hold. I'm so glad I took a look inside your showroom doors.
Hey everybody, it's good to have you on the Baba-too-da-ba-too-ba-ba-buh-doo-ga-ga-bop-a-dop
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06-02-2009, 01:20 PM
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#6
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Admin.
Join Date: Aug 2005
Location: Hamilton, NJ
Posts: 20,149
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__________________
Vent Windows Forever!
The looser the waistband, the deeper the quicksand. Or so I have read.
Feather-light suspension, Konis just couldn't hold. I'm so glad I took a look inside your showroom doors.
Hey everybody, it's good to have you on the Baba-too-da-ba-too-ba-ba-buh-doo-ga-ga-bop-a-dop
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06-02-2009, 01:36 PM
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#7
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,341
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which relay did you replace? looks like it could be the fan going out and drawing too much amperage.
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06-02-2009, 01:37 PM
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#8
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Admin.
Join Date: Aug 2005
Location: Hamilton, NJ
Posts: 20,149
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Fan appears to have its own 60 amp fuse
__________________
Vent Windows Forever!
The looser the waistband, the deeper the quicksand. Or so I have read.
Feather-light suspension, Konis just couldn't hold. I'm so glad I took a look inside your showroom doors.
Hey everybody, it's good to have you on the Baba-too-da-ba-too-ba-ba-buh-doo-ga-ga-bop-a-dop
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06-02-2009, 01:55 PM
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#9
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,341
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i must be reading it wrong. i only see in the 2nd diagram the 25 amp "a/c" fuse which both the clutch and fan relays seem to feed through.
i didn't see any TSB's
what motor btw?
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06-02-2009, 01:59 PM
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#10
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Admin.
Join Date: Aug 2005
Location: Hamilton, NJ
Posts: 20,149
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oh the condenser fan. I was looking at the blower fan. If that is the fuse going I'd check the fan for a short
__________________
Vent Windows Forever!
The looser the waistband, the deeper the quicksand. Or so I have read.
Feather-light suspension, Konis just couldn't hold. I'm so glad I took a look inside your showroom doors.
Hey everybody, it's good to have you on the Baba-too-da-ba-too-ba-ba-buh-doo-ga-ga-bop-a-dop
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06-02-2009, 08:46 PM
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#11
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Power Member
Join Date: Oct 2007
Location: Milford NJ
Posts: 1,526
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Quote:
Originally Posted by madness410
have you tried different amp fuses?
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thats a really good way to start a fire....
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06-03-2009, 02:36 PM
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#12
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Sliderule / Moderator
Join Date: Oct 2004
Location: Catawissa PA
Posts: 2,294
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4WD 2.0 motor.
One thing I didn't take notice of is if the fan turns on when the compressor activates. The actual blower motor is fine and continues to run. When the fuse blows the compressor shuts off (and of course then the AC blows warm air).
I replaced the AC compressor relay. Guess I need to check the fan relay as well.
__________________
93Z M6 Black: The 385 Lives! Supercharged, 3-core front mount intercooler, GTP heads, 3:73's, Street twin clutch, Jethot Longtubes, Mufflex 4" catback/spintech, S+W cage, Spohn Suspenion, Yada Yada Yada
1) Build it
2) Race it
3) Break it
4) Repeat!!!
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06-03-2009, 04:19 PM
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#13
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Join Date: Apr 2006
Location: Landing, NJ
Posts: 1,042
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i remember when i was at the dealer, same car had the same prob, replace the heater control and it was fine after that, but you would want to check everything before you decide to go that route.
__________________
87 Trans Am 5.7, Auto, posi disc rear, flowmaster muffler, all org car.
88 Iroc-Z TPI, Cammed 350, Vortex Heads, Magnaflow, T5, 4 Wheel Disc, 3.27 9 Bolt PBR.
91 Trans Am VertTPI 350. 700r4, K&N Air Cone, Ryven Muffler.
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06-04-2009, 09:03 AM
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#14
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Sliderule / Moderator
Join Date: Oct 2004
Location: Catawissa PA
Posts: 2,294
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Quote:
Originally Posted by 88 Iroc Vert
i remember when i was at the dealer, same car had the same prob, replace the heater control and it was fine after that, but you would want to check everything before you decide to go that route.
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Thanks, I read that the switch is a major job to replace, have to take most of the dash apart!
__________________
93Z M6 Black: The 385 Lives! Supercharged, 3-core front mount intercooler, GTP heads, 3:73's, Street twin clutch, Jethot Longtubes, Mufflex 4" catback/spintech, S+W cage, Spohn Suspenion, Yada Yada Yada
1) Build it
2) Race it
3) Break it
4) Repeat!!!
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06-05-2009, 01:55 PM
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#15
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Join Date: Apr 2006
Location: Landing, NJ
Posts: 1,042
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Quote:
Originally Posted by Pampered-Z
Thanks, I read that the switch is a major job to replace, have to take most of the dash apart!
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yep, i hated it so much i did more then one, NIGHTMARE. Well good luck with yours.
__________________
87 Trans Am 5.7, Auto, posi disc rear, flowmaster muffler, all org car.
88 Iroc-Z TPI, Cammed 350, Vortex Heads, Magnaflow, T5, 4 Wheel Disc, 3.27 9 Bolt PBR.
91 Trans Am VertTPI 350. 700r4, K&N Air Cone, Ryven Muffler.
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