20 Most Recent 1998 Chevrolet Express - Page 8 Questions & Answers

vehicle must be take to the dealer if you don't have the ignition key with the chip on it

by the oil filter housing

bad starter relay

bad bulb

You can't !! Most of the time there is a module under the sofa, that get corroded you have to by pass the module and motor wires, if the motor still working bed would let down other wise motor and module must be replace it

It is on the inside fuse panel. But it isn't a fuse. It is a circuit breaker. It has a metal wrap on it, about 1 inch long and 1/4 inch wide. Fuses are plastic.

Under the brake master cylinder.

You didn't specify which engine you have. So I listed available engines here - 4.3L and the 4.8,5.3,6.0L Gas motors have a minimum spec of 6psi at 1000rpm and 18psi at 2000rpm, and the 6.6L diesel has a 7psi idle and 28psi at 1800rpm. That being said - 20 psi is good. 20-40 is usually a good number at idle - it will move up the engine speed.

sounds like cylinders are full of diesel you need to pull injectors to relieve pressure on cylinder.. it causes it to lock the engine up .. you might have left the key on with a leaking injector and filled the cylinder with diesel and then it would lock you engine.

probably needs a new switch then

the high humidity (water) is attacking your electrical starting system, whens the last time you changed your spark plug wires , distributor cap & rotor ? how about your fuel & air filters ? cleaned your battery terminals ? try it , it will help !!!!!!!!!

Check all fuses again. Make sure your wire isnt touching anything it shouldnt. Remove negative battery cable. wait a few minutes. reattach cable, restart & go from there

sounds like a faulty column switch

Given that you have replaced the entire cranking system except the battery cables... I would put money on what Christopher said. You can do a voltage drop test to prove it if you have a DVOM. When it gets that cold it requires a lot of extra amperage to turn the starter. if you have a bad cable (corrosion inside the insulation is not un common) it can't pass the necessary amperage. Either cable of both can cause this problem. If you're in on of those places where it is all of a sudden like the North pole but doesn't normaly get that cold you may have had this problem all the while but didn't know it.