Where is the o2 sensor bank 1 sensor 3 on 1998 chevy express 1500 van

SOURCE: location Fuel Tank Pressure Sensor on a 2005 chevy express van

lOOK UNDER THE REAR OF THE VEHICLE ABOVE THE SPARE TIRE ON A CROSSMEMBER BETWEEN THE FRAME RAILS.

Johnny Brown

• 5763 Answers
• Posted on Oct 01, 2009

SOURCE: My chevy express van 1500 cranks but wont start

test and see if you have spark and fuel preasure, you may have bad feul pump, common problem is the fuel pump goes bad, but check before replacing.

SOURCE: 2000 chevy express 1500 van having starting issues

Start with fuel system. Listen for fuel pump humm at fuel tank No humm check wiring to pump for power. Then check for spark at plugs and wires. Remove wire from coil and hold near engine and see arch when you crank. No arch. Replace ignition Modular inside distributor cap or cap or rotor

SOURCE: where is the bank 1 sensor 2 o2 sensor for a 96

Oxygen sensors are numbered by which bank of cylinders they serve. Bank 1 is the left or drivers side bank of cylinders on the 4.3L which has the odd numbered cylinders 1,3, and 5. Bank 2 is the right or passenger side bank of cylinders numbered 2, 4, and 6. The Bank 1 Sensor 1 would be the sensor for the left hand side of the engine AHEAD of the converter. Bank 1 Sensor 2 is the sensor for the left hand side bank of cylinders BEHIND the converter.

SOURCE: Where's the location for O2

Bank 1 is the side that has cylinder #1... Sensor 1 refers to the sensor that is BEFORE the catylitic convertor. On your vehicle it is the PASSENGER side.