Hi, does anyone else who has a 2003 silverado with 5.3l engine have AC trouble?
During the summer mine will not cool very well, Dealer tells me that a 30 degree temp drop is working fine (on a 90degree day).
Hi, does anyone else who has a 2003 silverado with 5.3l engine have AC trouble?
During the summer mine will not cool very well, Dealer tells me that a 30 degree temp drop is working fine (on a 90degree day).
60 is not cold! It should put out 40-50 anytime.
2006 Superior Blue Trailblazer SS AWD, Stock as a rock
Sold: 2002 GMC Sportside Denali front end with a 2002 LS1, FLT level 5, Yank 2600, Trick Turbo, T76, Nelson intercooler, 60LB injectors, Warbro fuel pump, Eaton locker, Magnaflow, 3.42, Nelson Performance Tuning (speed density).
Sold: 1981 GMC LB RC 1500 2002 4.8L 4L60E 12 bolt 3.73 Richmond Lock Right AC PS Nelson Performance tuning
Does the AC blow warm when the vehicle is stopped or in stop and go traffic, but gets colder when the vehicle is at higher speeds? If so, you're fans may not be operating properly or the condenser has problems. Make sure that your radiator and condenser are clean (i.e. no leaves or dead bugs). Any debris will limit airflow, therefore reducing the cooling capabilities of the radiator and condenser. If the AC blows warm at all speeds, then you may need more refridgerant or there are problems elsewhere in the system.
Mixing alcohol and Prozac...
Could be wonky temp blend door.
1991 Silverado ECLB
LM7-T56
It does not seem to be cold even at driving speeds. I have checked the front for de-bree and there is none. r6z406 mentioned the temp blend door, I have heard of problems before with that from other people. How do I check it? Also I came across some TSB on another Chevy website that says contaminated refrigerant could be a cause (I'll put it up later when i find it again). Would it better to have it "cleaned" through a recycling machine or evacuate it, replace the orifice tube and then charge it?
Last edited by cm2677; 03-13-2008 at 07:11 PM.
Make sure your clutch is engaging on the compressor. If it is not then it might be the clutch switch went out which is an easy fix. If that switch went out then it most likely means that your low on refrigerant also.
00' Ls1, TSP 228R - 228/228 .588/.588, Yank SST3200, Nelson tune, Nelson wiring harness,
s&p headers, custom radiator with e-fans,91 sub front end with billet grill and bowtie,autometer gauges, red and grey tweed interior, dual 2.5" flowmaster super 40, Dmh cut outs, 5"-7" drop,air shocks, 20" Intro twisted vistas, gaylords bed cover
Coming soon: Air ride with an SD raised front crossmember and 6 link canti out back
Yeah my guess was freon, compressor, condenser, or the pressure switch. Could be something simple or something complicated.
Take it to a real shop and not the stealership. You really dont need to run it till its fixed cause you could cause damage to other parts mainly the compressor, which Im sure you know is usually the most expensive to replace.
2005 Crew Cab 1500HD aka "Big Beast"
6.0L Cam'd & turbo'd **SOLD**
'03 Cummins straight piped and a programmer
"I bought a Cummins and it came with a free Dodge!"
LS182 your truck is sick!!
I love the 78-87 body styles when done right. Good looking truck!
Sorry to thread highjack....it just needed to be said lol!
2005 Crew Cab 1500HD aka "Big Beast"
6.0L Cam'd & turbo'd **SOLD**
'03 Cummins straight piped and a programmer
"I bought a Cummins and it came with a free Dodge!"
Originally Posted by hebdog
Thanks 4 the compliments!
00' Ls1, TSP 228R - 228/228 .588/.588, Yank SST3200, Nelson tune, Nelson wiring harness,
s&p headers, custom radiator with e-fans,91 sub front end with billet grill and bowtie,autometer gauges, red and grey tweed interior, dual 2.5" flowmaster super 40, Dmh cut outs, 5"-7" drop,air shocks, 20" Intro twisted vistas, gaylords bed cover
Coming soon: Air ride with an SD raised front crossmember and 6 link canti out back
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