20 Most Recent
2003 Hummer H2 - Page 9 Questions & Answers
Change spark plugs
- Disconnect the spark plug wire at each spark plug.
- Twist each spark plug 1/2 turn.
- Pull only on the boot in order to remove the wire from each spark plug.
- Disconnect the spark plug wire from the ignition coil.
- Twist each spark plug boot 1/2 turn.
- Pull only on the boot in order to remove the wires from the ignition coil
Install the spark plug wires at the ignition coil.Install the spark plug wire to each spark plug.Inspect the wires for proper installation:Repeat above procedure for all 8 cylinders.
Abs light came on and a tc with line through it
when you have antilock "problem " on this vehicle you automatically get t\c light, I fixed this problem for a friend when the tire rubbed through one of his abs sensor cables .. just re-connected it don't spend $500 at a "RELIABLE" shop if you can fix this yourself....they will never tell you how easy it might be to repair!!
No ignition with key
please firts test the Fuse, if is blown, or loose, or bad contacts by corrosion. 2) see the schema attached you can bypass the swtich and try itGod bless you
03 H2 HUMMER WONT START
Does your scan tool have a reset eeprom mode?
if not, try disconnecting the battery for a 30 min period, then try
Not finding what you are looking for?