Question about 2002 Chevrolet Impala

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No power when going up hills, tries to overheat when going up hill. air conditioner only works when on high. gas gauge says full when tank is empty.

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Run scanner for trouble codes, some auto parts stores will do this for free,check coolant level, check fuel pump level,  you will probably have to pull it from tank.

Posted on Oct 02, 2009

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1999 MERCURY VILLAGER BOGS WHEN GOING UP HILL WHEN ONLY 1/8TH TANK OF GAS FILLE IT UP AND THEN STILL BOGGED FOR ABOUT A MILE THEN QUIT BOGGING WHAT CAUSED THIS


when a tank is empty there is no fuel for the pump and the system runs low on fuel pressure Going up hill the fuel runs away from the pick up line and the pump sucks air
After filling it takes a while to empty the air out of the system to allow full pressure again. It is an extremely costly practice to run so low on fuel as it may lead to a pump replacement

Mar 04, 2014 | 1999 Mercury Villager

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What's the easiest way to change the spark plugs and my gas gauge bounces around alot it goes from full to empty. my 4wheel drive wont engage either


jack it up, use jack stands. take off the front wheels, and go in through the wheel well to get to the spark plugs. Gas gauges on every blazer is freaking crazy. mine acts up when it`s at a 1/4 tank. Park up hill it shows more, park down hill, it shows empty.

To much trouble to replace, unless you have the time and money to replce the sending unit.

Feb 16, 2011 | 2002 Chevrolet Blazer

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Put unleaded in a diesel car


as long as you didnt put in more than 30% of the tank capacity,just fill to the top with diesel.then fill again when 1/2 empty.
you will have a hot start problem so try to let the engine cool before restarting and do not use it for stop/start trips until empty.also DO NOT use full throttle or climb steep hills in too high a gear.
just to clarify.....the us/canadian army use gas in the diesel tanks in arctic conditions to stop the fuel from freezing......there engines cost 1/2 $million ......

Aug 22, 2010 | 2008 BMW 1 Series

1 Answer

Going thru coolant like crazy but theres no leak. we done so much so far. we put a water pump in and a therpasat in and sencer in and intake gaskets


Well first off, since you have replaced many parts, perhaps you have air in the system. Also check the oil to see if it looks like chocolate milk or is extremely high (indicating a blown head gasket).
While system is cold, add coolant to the radiator (if applicable) and the coolant tank. Then start the vehicle and turn the heater on high heat - full blast. Let run for 15 minutes or until the engine begins to overheat or the coolant tank become empty. Let the vehicle cool down (30 minutes) then repeat until it coolant level doesn't drop or engine doesn't overheat.
Now go for a test drive for about 10 - 15 miles make sure to take hills and highway/freeway. Let vehicle cool down and recheck coolant tank and radiator. If level has gone down then something is wrong. Perhaps the thermostat is in backwards.

Jan 06, 2010 | 2003 Pontiac Grand Am

3 Answers

Loosing power especially on hills


There could be a dozen causes. Get a tune up.

Oct 25, 2009 | 2001 Volvo V70

3 Answers

Cuts off on steep hills,not building up comprention on the hill


it is proberly because the car is not made to go up hills at slow speed these types of cars are not made for speed but not at slow speed aither you will have to go up the hill in 1st reving the hell out of it

Jul 10, 2009 | 1998 Suzuki Sidekick

1 Answer

The gas gauge when in a downward incline goes to


The sending unit in your tank is may, be going bad you could try replacing it.

Jun 24, 2009 | 2002 Buick Century

1 Answer

Fuel gauge peggs out


Mostly likely you have a tank mounted fuel gauge. If your vehicle is pointing down hill the guage goes up or down. It is usually the fuel level in the tank that makes the float go up to tell you how full the tank is, if fuel is sloshing around then level fluctuates. I would say that if it stabilizes on level ground and at a stop, and you can get a stable fuel reading then this is more of an annoyance than a problem. If you can get an accurate reading and you do not run out of fuel you may want to leave this one alone, you will have to drop the fuel tank and replace the fuel float on top of the gas tank which can be labor intensive as well as expensive.

Jan 09, 2009 | 2002 Pontiac Aztek

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