Take air cleaner off n press accelerata
On the I6 engine, right down the throat of the throttle body.
SOURCE: 2003 Hyundai elantra
Hi there they are known to have dramas with the pick up for the immobilizer i would be getting that checked first before spending money on something .else
SOURCE: 2003 GMC Envoy stalling w/ AC on when stopping
try turning up the idle ajustment screw also have alternator checked, another solution would be to have your car tuned up weak spark from your coil worn plugs wires etc. not enough power is being produced
SOURCE: I have 2003 gmc envoy my front ac control does not
Need to check to see if the blower motor is running.If it is,but not threw the vents,most likely a vent door actuator motor.The actuator motor in this case would be bad,it is hard to get to,unless you are mechanically inclined,You can do it your self.If the blower motor is bad,just replace it.Check fuses first,and the blower relay.If I can help,let me know.
SOURCE: How do you replace a fuel pump on a 2003 gmc envoy
unfortunately you will need to drop the gas tank ....you will need a jack and jack stands for safety reasons and some tools sockets - {deep-well} and screwdrivers and patience and hopefully a warm area and pliers ........if you decide to do this first i can give you more detailed assistance on what to expect as well as difficulty level etc.....a few hours i assure you a bit of difficulty depending upon your mechanical skill and health i know i had to have mine sent out as i could only get it 3/4 the way out and i have been an auto/body mechanic and suspension paint metal etc for over 34 years but my health issues restrict me from even the simplest of tasks at times i hope this helps you in making a decision and ...................ensure in fact it truly is the fuel pump 1st have you determined this yet ? a pressure test can be made for free from most parts stores and a few major repair franchises
SOURCE: HOW DO I CHANGE MY FUEL FILTER ON MY 2003 GMC
Fuel Filter
Removal & Installation
2002-2004
To Remove:
NOTE: If a fuel filter is restricted, clean and inspect the inside of the fuel tank.
To Install:
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