A/C unit

dgiorgia
0

Asked by dgiorgia Jun 30, 2012 at 03:25 PM about the GMC Sierra

Question type: Maintenance & Repair

A/C unit will kick on-off every 2seconds without cooling the truck, have checked the refrigerant and
appears full, suggestions?

1 Answer

Mike Zaba
885

I would say you are low on refrigerant. Have you hooked up gauges to both high and low sides to see if it was full? You cant tell just off the low side

Your Answer

Add photo

Related Questions

  • 1991 gmc Sierra 5.7 2 answers

    Since my last oil change my oil pressure isn't building, it used to sit on 30psi now it barely reads on the dial, any advice on the problem?

    1989 GMC Sierra

    -

    Maintenance & Repair

  • Just bought a new thermostat for my gmc Sierra with a 350 in it and it has started making a ticking noise now after replacing thermostat and can't figure out why? 7 answers

    1993 GMC Sierra

    -

    Maintenance & Repair

  • What do I do next? 6 answers

    I have an 87 gmc high sierra 5.0. I changed the fuel filter, fuel pump and sending unit. Just put new plugs and plug wires and the timing is set. It still has hesitant take off and today it backf...

    1987 GMC Sierra

    -

    General

  • A/C unit 3 answers

    A/C unit will kick on-off every 2seconds without cooling the truck, have checked the refrigerant and appears full, suggestions?

    2000 GMC Sierra 1500 SL Standard Cab SB

    -

    Maintenance & Repair

  • Oil sending unit

    Oil Pressure gauge erratic. Replaced oil sending unit (that was fun!). Gauge worked fine for few days, now either erratic or topping out? Gauge problem? Defective sending unit?

    2005 GMC Sierra 2500HD 4 Dr SLE 4WD Crew Cab SB HD

    -

    Maintenance & Repair

Search GMC Sierra Questions

GMC Sierra Experts

#1 FordNut
FordNut
Reputation 190
#2 dandyoun
dandyoun
Reputation 110
#3 John Saffrahn
John Saffrahn
Reputation 70
View All

Related Models For Sale

Used GMC Sierra 1500"
697 Great Deals out of 59,664 listings starting at $2,000
Used Chevrolet Silverado 1500"
1,638 Great Deals out of 133,605 listings starting at $999
Used Ford F-150"
2,112 Great Deals out of 121,851 listings starting at $988
Used GMC Sierra 1500HD"
3 Great Deals out of 110 listings starting at $4,980
Used Chevrolet Blazer"
12 Great Deals out of 1,577 listings starting at $1,495
Used GMC Sierra 2500HD"
124 Great Deals out of 11,832 listings starting at $4,495
Used GMC Sierra 2500"
168 listings starting at $5,900
Used Ford Mustang"
747 Great Deals out of 31,402 listings starting at $1,800
Used GMC Yukon"
207 Great Deals out of 8,192 listings starting at $2,550
Used Toyota Tundra"
449 Great Deals out of 16,347 listings starting at $2,900
Used GMC Canyon"
83 Great Deals out of 6,367 listings starting at $3,500