Tl* the contact owns a 2006 gmc envoy denali xl. The contact stated that the check engine warning light illuminated. The fuel gauge also fluctuated between empty and full andwould not provide an accurate reading. The dealer was informed of the fialure and the contact was awaiting a service appointment. The manufacturer was not aware of the failure. The current mileage was approximately 56,000 and the approximate failure mileage was 55,000.
2006 GMC Envoy Denali XL fuel system complaints
Page 2 of 2: complaints 11 to 19 of 19, newest first, as owners wrote them.
My fuel level sensor is failing to tell me the true amount of fuel left in the tank. I often says that the tank is empty but many times it changes from 3/4 full to 1/2 full and sometimes back up to full then empty. I replaced the fuel level sensor and is now working. I do have the old sensor available. 2006 envoy denali xl.
2006 gmc envoy denali xl- fuel gauge is broken. Goes from empty to full often. I've seen several other complaints about this and the dealership is saying this is a common problem...where is the recall????
About 4 months ago, at around 42,000 miles, after filling up the fuel tank, the fuel gauge started fluctuating from full to empty. For a few months this would only happen when the fuel tank was above full, but lately the fuel gauge will drop to empty for longer periods of time and at any fuel tank level not just when it is full. This makes it real hard to know how much gas is left in the tank and would make it possible to run out of gas.
Gas gauge fluctuates making it impossible to know the amount of gas left in vehicle. Vehicle has run out of gas on highway several times. Gas sensor is faulty according to dealer.
Tl*the contact owns a 2006 gmc envoy denali. The contact stated that in october 2009, he noticed that the fuel gauge would "flutter" and register that it was empty when he added gasoline to the fuel tank. After consuming five to seven gallons of fuel, the fuel gauge would begin working normal until the it was time to add the maximum amount of fuel in the tank. The check engine light also illuminated and the heater would blow cold air on the driver side and hot air on the passenger side. The vehicle was taken to the dealer where the sending unit in the fuel tank was replaced and the heater was reprogrammed; however, the heater still did not function properly. The VIN was unavailable. The failure mileage was approximately 40,000. The current mileage was approximately 46,000.
Gas gauge goes from empty to full repeatedly, regardless of fuel level. Very common on all gm SUV's manufactured in 2006. Leads to vehicles running out of gas when drivers believe they have a half or quarter tank of gas, etc...
After filling gas tank, fuel gauge did not operate properly, going from empty to full repeatedly. Check engine light came on also.
While driving, check engine light came on. Fuel tank gauge started to continually shift from whatever state the fuel tank was in to empty then after some time revert back to normal fuel capacity at the time. Contacted onstar for a diagnostic and they stated there is a problem with the fuel sending unit.
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