Questions & Answers for: GMC cooling

engine cooling fan runs all of the time 2003 gmc envoy xl engine cooling fan running all of the time. check engine light came on I purchased a code reader and the code shows po495 engine cooling fan ...

...Technician's My Envoy has a trouble code P0495. Technician's preliminary analysis is a failed cooling fan clutch. Car is not overheating. Does the clutch typically fail in the locked position ...

service engine light is on and code P0526 The Powertrain Control Module (PCM) uses the cooling fan speed signal in order to determine the actual fan speed in relation to the desired fan speed. The PCM

...and any thing longer then that, the coolant crystallizes causing a flow restriction throughout your cooling system. There is a TSB for thew servicing of coolant that needs to be done before replacing ...

my 2003 envoys ac cools normal about 10 min. then looses its cool temp.for 3 or 4 min. then cools then warms The ac needs to be recharged

...know why first shop did not install). Will cool up to about 90-95 degrees, then not enough cooling power. A/C vent temp to 70-80 degrees. Will not cool at idle, must run at 1500 rpm to cool. ...

...to the radiator? If there is then its possble the cooler is leaking inside the radiator. Does the cooling system still use Dex-Cool? The S trucks are one of the models that seem to have problems ...

...but still blows cold air Your statement in it-selves solve the problem. Your vehicle cooling system and air-conditioner system work independently. Your vehicle cooling system is driven ...

...30 seconds then ok; why? 4 whhel drive; 4.3L engine I would say more than likely it the radiator cooling fan. For some reason some vehicles, no matter what temperature, the cooling fan clutch ...

procedure to diagnose dtc p0526 2005 gmc envoy 4.2L DTC P0526 Cooling Fan Speed Sensor Circuit Circuit Description The powertrain control module (PCM) uses the cooling fan speed signal in order to ...