2005 GMC Envoy: fuel pump failure

Filed Oct 21, 2012 · Fuel system · 48,500 miles · CA

After receiving recall for fuel pump and sender,gas gauge started acting up. When filling, gauge would read empty with light on or would go all around pass full. Wife had to use trip meter to estimate how much fuel was in tank. Took to dealer and they said level sensor failed and replaced same at no cost. Picked car up and was driving about week, when wife said gauge not working again. Checked and found when car was started gauge went to half, turned car off gauge stayed at half and when started again went to 3/4 full. Did this several times and gauge went pass full. Called dealer to ask if gm had come up with something for their cars to make fuel so I would not have to pay $5.00 per gal. They said no, so took car back to have checked again. This time was told it was cluster which was bad. So had replaced at a cost of $486.10 and guess what not part of recall. So had to payout of pocket. I told them they need to stop putting so many chinese parts into so called made in america cars because they cannot talk to each other. Just crossing fingers it will get me to midwest and back before something else goes bad. Need the good old days back when you didn't need a computer to trouble shoot a computer in your car. Oh by the way, you cannot expect the politicians to call for gm to pay for these repairs, because it might lower their stocks from inside trading, when they found out they were bailing gm out from bankruptcy.

Filed Mar 19, 2012 · Fuel system · CA

Since february 2011 fuel sensor problems inaccurate reading fuel gauge displays full then empty indicator light turns on then off, driving on the 10 freeway east with grandchildren aboard very close to accident had to immediately pull off to side no fuel in tank. Reported problem to mark christopher auto center ontario calf. Replace fuel sensor also recommend fuel pump module replace at the same time since fuel tank was off vehicle estimate for service $324.88 tax included to replace fuel pump module parts and labor $800.00. Very costly since on set income just service envoy replace fuel sensor total amount due $740.34. Received letter from general motors 8/9/2011 reimbursing charges of 50% only for fuel sensor charges paid. Year to date continual problems with fuel gauge reading, returned to dealership on february 10, 2011 did explain fuel gage reading were inaccurate, service technician placed on scope & scanned for malfunctions stated no problems found. Personally upset for the amount paid thinking gm only cares about labor charges and price on parts contributes to their profit no losses. Customer service is no longer their priority.today speedometer operates inaccurate reads over 150+miles, oil gauge is locked, RPM gauge inaccurate fluctuates back & forth, fuel gauge reads fuel present actually empty indicator light displays empty or inoperative stops suddenly confusing me adding fuel especially with todays price. Water temp gauge reads vehicle over 180 degrees so incorrect. Today disable service connected vietnam veteran also two family members unemployed on set income how in hell to get this problem resolved before a accident occurs on some isolate dark highway, everyone texts, cell phone usage, GPS reading their screens little attention to the road ahead. Requesting help soon with my issue, notified general motors of this today through mail.

Filed Jan 2, 2012 · Electrical, Fuel system · OH

Repeat problems since car was purchased brand new at dealers. Air /o2 sensors defective/replaced. Defective fuel pump/fuel sensor/electronic gas gauge; flickering/dimming headlights; freezing/inability to control driver's side seat and controls. 1/4 of front instrument panel lights out; drivers side seat control lighting 1/4 out; check engine light and low fuel light on continuously since 1997. Tie rods both replaced as well as both front sway bars. Immediately following vehicle purchase, check engine light would continuously go off. I would call onstar at which point I was told to take car in for repair w/I 7-10 days (often told a problem w/powertrain or transmission) . At dealers service dept, told over and over again after tons of worry, concern and time spent, that electrical system on this car tends to trip/trigger check engine light and they would just reset it so after awhile, I began to disregard the light as I was in the dealership almost weekly. Approx 2 yrs after purchase, filled up gas tank and fuel light showed "low fuel". Went back up to full, dropped to 1/2 and back to empty. Went back to full after car was turned off and continued to do this. After about 2 weeks, constantly stays at empty. Called repair shop and was told approx $700-800 to drop tank and replace fuel sensor which I could not afford and began to track odometer and refill tank after 200 miles driven after fill up. Have been doing this for 5 years. Jan 29,2011, I go for emission test. Fail d/t low fuel and check engine light being on. Go to mechanic, approx $950 repair. Check engine light goes off...and back on next day. Read thousands of posts online and am finding many, many envoy owners experiencing same problems as mine. These are safety issues and gm should issue a recall on entire fuel and electrical system. Please call for questions/clarification.

Filed Sep 19, 2011 · Fuel system · 56,000 miles · PA

The fuel system started to malfunction around the first week of sept 2010. I was going on vacation stopped to get gas, after filling up the gas gauge read empty and the warning light came on. After shutting the envoy off and restarting it the gauge seemed to work. As the days went on the gauge completely quit working and the low fuel light has remained on. I reset my trip meter after every fill up, how annoying. I am not the only consumer with this complaint. I rec'd a letter that gm states its the fuel level sensor. The only fix a new fuel pump from a dealer at 50% off? Who can afford dealer prices? This is obviously a defect that gm is failing to own up to. Any help would be appreciated.

Filed Dec 11, 2010 · Fuel system · NC

Fuel pump not reading gasoline levels causing the gauge in the dash not to work and be on empty at all times. Fuel light also stays on.

Filed Nov 24, 2010 · Fuel system · 60,000 miles · OH

I'm having the same issue with the fuel gauge on my 2005 gmc envoy. I can register 1/4 a tank but the minute I fill, the gauge drops below empty and the fuel light comes on. I have to drive at least 25 miles to have it register even a 1/4 of a tank and a full 70-85 miles for the gauge to get to show a more accurate level. The mechanic I went to admitted it was the fuel level sensor causing the issue but advised me that I had to replace the entire fuel pump. He quoted $505 for the fuel pump and an additional $360 for the labor its not fixed I don't have the money, what happens if I run out of fuel on the highway or on a tight turn on a hill and the car shuts down and the steering locks? I've read 1000's of complaints and horror stories about this and no recall. This is extremely dangerous!

Filed Feb 11, 2010 · Fuel system · 80,000 miles · TN

In reference to dp10-001. I have a 2005 gmc envoy that has an erratic gas gauge as well. After re-fueling the vehicle, the gauge will go to empty and illuminate the empty tank warning light. After driving about 20 miles, the gauge will return to the full position, but will fluctuate occasionally. I have had the problem diagnosed as possible faulty sending unit, faulty gauge and faulty sensors on the fuel pump assembly.

Filed Feb 10, 2010 · Acceleration, Fuel system · 47,807 miles · CA

Item 1: fuel gage located on instrument panel reads empty after tank is filled to maximum, light goes on indicating tank soon to be empty, after fuel is added gage fluctuates often from empty to 3/4 filled then 1/2 tank then back to empty reading which makes me constantly refueling tank . This problem occurs while vehicle is in operation..item 2 speedometer fluctuates reading 80 miles in speed actually no such speed is being driven then returns to zero miles continues to move so eratically. Dealer service advisor stated problem is the fuel sensor suppressor located in the fuel tank, states tank must be dropped down during repair, recommended should replace fuel pump now since tank was accessible good opportunity in replacing also this item is covered with lifetime warranty. Fuel pump price $480.00. I declined repair onlyrepair fuel sensor/suppressor, check speedometer gage. Service advisor stated this item was not recalled or covered, this financially sets me back now since on a set income.this because myself a disabled vietnam veteran. Hope no more problems would be found on my vehicle these.this part alone would cost $380.00 not including repair charges. Vehicle was in for maintenance service oil change, radiator flush, tune up, transmission service. Personally always have recommend gm vehicles/products to all associates, family, friends & acquaintances. I own a classic original 1947 pontiac 8 flathead, 4 door streamliner.today just disappointed with these issues may have resulted to accidents leading to bodily injuries, or fatalities. Complaints have been filed with this model among other issues.& concerns. Would appreciate investigation the many complaints on file through years 2001-2008 make & models also set as priority before any future accidents or deaths occur. With quick response & action gmc can avoid many bad reactions against their history of great quality and it's excellent commitment to customer satisfaction.

Filed Feb 10, 2010 · Acceleration, Fuel system · 47,807 miles · CA

Item 1: fuel gage located on instrument panel reads empty after tank is filled to maximum, light goes on indicating tank soon to be empty, after fuel is added gage fluctuates often from empty to 3/4 filled then 1/2 tank then back to empty reading which makes me constantly refueling tank .this problem occurs while vehicle is in operation..item 2 speedometer fluctuates reading 80 miles in speed actually no such speed is being driven then returns to zero miles continues to move so erratically. Dealer service advisor stated problem is the fuel sensor suppressor located in the fuel tank, states tank must be dropped down during repair, recommended should replace fuel pump now since tank was accessible good opportunity in replacing also this item and I would be covered with lifetime warranty in future if need of repair. Fuel pump price $480.00. I declined repair only fuel sensor/suppressor, check speedometer gage. Service advisor stated this item was not recalled or covered, this financially sets me back now since on a set income.this because myself a disabled vietnam veteran. Hope no more problems would be found on my vehicle these.this part alone would cost $380.00 not including repair charges. Vehicle was in for maintenance service oil change, radiator flush, tune up, transmission service. Personally always have recommend gm vehicles/products to all associates, family, friends & acquaintances. I own a classic original 1947 pontiac 8 flathead, 4 door streamliner.today just disappointed with these issues may have resulted to accidents leading to bodily injuries, or fatalities. Complaints have been filed with this model among other issues.& concerns. Would appreciate investigation the many complaints on file through years 2001-2008 make & models also set as priority before any future accidents or deaths occur. With quick response & action gmc can avoid many bad reactions against their history of great quality and it's excellent commitment to customer satisfaction.

Filed Feb 10, 2010 · Acceleration, Fuel system · 47,807 miles · CA

Item 1: fuel gage located on instrument panel reads empty after tank is filled to maximum, light goes on indicating tank soon to be empty, after fuel is added gage fluctuates often from empty to 3/4 filled then 1/2 tank then back to empty reading which makes me constantly refueling tank .this problem occurs while vehicle is in operation..item 2 speedometer fluctuates reading 80 miles in speed actually no such speed is being driven then returns to zero miles continues to move so erratically. Dealer service advisor stated problem is the fuel sensor suppressor located in the fuel tank, states tank must be dropped down during repair, recommended should replace fuel pump now since tank was accessible good opportunity in replacing also this item and I would be covered with lifetime warranty in future if need of repair. Fuel pump price $480.00. I declined repair only fuel sensor/suppressor, check speedometer gage. Service advisor stated this item was not recalled or covered, this financially sets me back now since on a set income.this because myself a disabled vietnam veteran. Hope no more problems would be found on my vehicle these. This part alone would cost $380.00 not including repair charges. Vehicle was in for maintenance service oil change, radiator flush, tune up, transmission service. Personally always have recommend gm vehicles/products to all associates, family, friends & acquaintances. I own a classic original 1947 pontiac 8 flathead, 4 door streamliner.today just disappointed with these issues may have resulted to accidents leading to bodily injuries, or fatalities. Complaints have been filed with this model among other issues.& concerns. Would appreciate investigation the many complaints on file thru years 2001-2008 make & models also set as priority before any future accidents or deaths occur. With quick response & action gmc can avoid many bad reactions against their history of great quality and it's excellent commitment to customer satisfaction.

Filed Sep 15, 2009 · Fuel system · 56,850 miles · CA

This problem noted below is very very common in both chevy trailblazers and gmc envoys. Here's one link with over 200 descriptions of this same problem. Http://www.topix.com/forum/autos/chevrolet-trailblazer/th8ji6tepo3vrji3d please investigate this issue. It is very widespread and has potential to be dangerous due to cars stalling out in the middle of traffic. I know personally as mine has. Please read on.thank you for you help! 1.) fuel gauge started fluctuating when gas tank is filled. For two weeks gauge would start to move towards empty when in fact tank is full. Then gauge does not work at all or shows empty most of the time, then gauge moves slightly above the point where low fuel light illuminates and the low fuel warning dings frequently as it fluctuates between empty and less than a 1/4 tank. 2.) my envoy stopped running in middle of highway traffic. The check engine light came on, I had to coast to shoulder in 5 o'clock traffic in southern california. Car did start again after a few minutes computer reset. 3.) I have my car at the shop now. Initial code indicates fuel pump issue. From reading all of the posted complaints this is an issue that should be addressed with a recall.

Filed Jun 12, 2009 · Fuel system · 46,000 miles · GA

Tl*the contact owns a 2005 gmc envoy. The contact stated that the fuel gauge fluctuates while driving various speeds. The dealer stated that the fuel pump sensor failed and the fuel pump needed to be replaced. The manufacturer stated that she would be responsible for the repair costs since there were no recalls. The failure mileage was 46,000. Updated 06/24/09. *lj updated 06/26/09.