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2002 GMC Sierra 1500HD Questions & Answers
Po200 and po300 codes
in my DTC book p0200 is a Injector circuit malfunction and p0300 is a Random/Multiple Cylinder misfire so I would check wiring for both and maybe change plugs an wires I think you have broke wire that is shorting out so I would try to clear the codes either with a code reader or by disconnecting the battery for like 15 min and see if/how long it takes to code again after you get the injector wiring checked
2002 gmc ex cab po 332 knock sensor.. what is
their are 2 knock sensors located under the intake manifold you can't see them without removing the intake, they go bad quite often and I have replaced lots of them if attempting this repair on your own you should buy a book, one sensor will be bad, usually the rear due to water intrusion but replace both while your in there
REPLACE FUEL PUMP GMC 2002 SIERRa
the pump is in the gas tank siphon the gas out and remove the straps holding the tank(you will also need to remove the three screws holding the filler neck to the truck box under the filler door.)as you drop the tank you will also need to unplug the wiring to the top of the tank and the fuel lines they are usually plastic clips,but if this has been done before and the clips got broken from the first time they could have put clamps in place of the clips.I have found it much faster to remove the truck box itself and that way you don't have to drain the tank and it stays stationary while you RandR the pump with less chance of breaking anything.
Also did you double check the fuel pump relay under the hood in the relay box,I would start there first.
Hope this helps good luck.
Where is the starter on a 2002 GMC Sierra 1500 HD
If you are taking about the starter moter, it is located on the passenger side of the block look from under side starts where the transmission meets the motor . Two big bolts heads and a round cylinder.
Fuel filter change 2002 sierra 1500 hd 6 liter
It is located on the drivers side frame rail right under door, it is small round silver canister with a single bolt thur a anchor strap with a metal line feed in the back and the front.put wrench on the housing nut and a wrench on the line comming in to filter losen the nut on the line side, holding the filter firm,break fitting loose, there will be a small amount of pressure, and gas will run out so don't be smoking. take out the single bolt to remove the filter, installing new filter look for an arrow or the words in, out that is the fuel flow,fuel goes IN & OUT to the motor.Re-install and check for LEAKS.
Radio locked after disconnecting battery
In your manuel there is instruction to unlocking the radio and you may have the code's written in the back. If it does ask for a code try 0000 and if that does not work try logging on to www.radio-code.com.
They can give you the instruction and codes you need to reset your radio. If you have a good relationship with the dealer they may be able to help you out too since they are always disconnecting and changing batteries.
Good luck and hope this helps.
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