20 Most Recent 2002 Chevrolet Express - Page 6 Questions & Answers

There should be a fuse relay box under the hood with a fuel pump relay in it...have someone turn the key while you touch the relay to see if it is clicking when you turn the key..if not replace relay....if it does click, then it may be possible that the contacts on the relay are defective and the relay will need replacement anyway...there may also be a fuse for the fuel pump either in this box of under the dash...check to see that it is good also.

it may be the fuel injectors. i have had this problem with my 90 buick gs

First the location of fuel pump.The fuel pump is located in the gas tank.You need to remove the power feed line to the pump, drain the fuel, drop the tank, unscrew the retainer for the pump and replace the pump.---------Thanks.Helpmech.

Jump the >A+ B terminals and Watch Check Engine Light, it Will Flash Codes, First One will be Code 12 1 Flash> Pause then 2 Flashes. and if there are Not Any it will Keep Flashing Code 12. < Code 12 is a Confermation Code that Shows #1 that you are IN ECM CODE READ MODE, and It Also Conferms the "END" of Read Session.

FUEL PRESSURE MUST BE 62 LBS. OR GREATER OR IT WILL NOT GROUND INJECTORS, IF ITS OK THEN CHECK YOUR GRAY 12V SUPPLY TO PUMP AT CRANK-UP, YOU MAY HAVE A POOR IGNITION SWITCH.

bad ground wire

Very probable your problem may stem from one of two possible issues. Examine both lower red bulb sockets along side the cargo doors.

1. Either you have an single filament bulb installed in the dual filament socket

2. Your socket has rusted from water entering the lamp housing. This occurs when a bulb is first changed, the rubber gasket seal is broken and afterward rain water enters through the compressed rubber gasket and begins to rust the steel contacts within the bulb socket.

It's on the fuel rail atop of the engine intake manifold. Looks like the picture below.

The printed circuit board that the bulbs push into needs replacement. Any autoparts store will have it. It just screws into tailight assembly & attaches to wiring harness.

Replace the oxygen sensor, when the O2 sensor is bad it will make the fuel delivery slow causing the vehicle to lung. Replace the blower motor fuse underneath the drivers side steering wheel with the same number fuse. Flip the fuse box cover lid and the diagram will show where the fuse is located

sounds like the person who wired up your trailer harness crossed the wrong two wires

fould plug in 3 or 5 cylinder

head back to mexico

alternator diode faulty

There are 2 temp sensors one is the coolant temp sensor for ecm data and the other is engine coolant temp sender/switch for the guage.

I am assuming you are talking about changing a bulb in the interior of your van. This is simple. The cover can be removed by squeezing the cover at the middle of the long axis.

You will see the bulb. Turn it the only way it will go and replace with new bulb. Another squeese and you good to go.

Vehicle electric trouble shooting is the worst. Some of the problems you described the bulbs may have multiple filiments with only some burned out. It may sound silly but change the bulbs. Get a couple of new bulbs and try them in the different spots. Time, road vibrations and spring pressure causes the contacts on the bulbs to wear until they get a poor connection then you get a little arcing that build up a residue and a bulb that test good doesn't work.
Your on the right track with the ground wire. Try a test lamp with a good gound connection and test the different sockets, if your test light works but your bulb doesn't you have a ground fault. If neither work check the switch and fuse before you start tracing the wiring. These are just general trouble shooting tips It's very hard to trouble shoot electrical problems sight unseen.