20 Most Recent 1999 Chevrolet Express Questions & Answers

On my car and truck,, they are overflow,,meaning they come out of overflow tank and drain to the ground in case of "overflow{

On these websites you find fuse box diagram, description for Chevrolet Express (1999) Chevrolet Express 1999 fuse box diagram Auto Genius Chevrolet Express 1999 fuse box diagram

Check the owners manual:(http://www.gm.ca/media/owners/manuals/1999_Chevrolet_Express_Manual_en_CA.pdf)

You can test right from the starter relay ,located in the under hood fuse relay box . You want to know if the starter is good or bad or if the control side is the problem . Turning the ignition switch to start sends B+ voltage to the park neutral safety switch an through the coil side of the starter relay to ground ,if the park neutral switch is good . Try moving the gear selector into neutral to see if it starts then . Looking at a wiring diagram would be a good first step in the diagnostic process. Free wiring diagram's here http://www.bbbind.com/free_tsb.html Enter vehicle info year , make , model and engine size . Under system click on engine then under subsystem click on starting . Click the search button then the blue link . Pull the relay an look at the bottom , you will see four numbers . 30 - 87 & 85 - 86 . Take a piece of 12 gage wire ,jump where 30 an 87 plug into the relay socket . If the starter is it will spin the engine over .

I would either check the prnd switch on the side of the trans or the VSS sensor on the tail stock or the pressure modulator for engine vaccum.

PWR ACCY Fuse Breaker A 25A Located in the instrument panel fuse box. I/P Fuse Box In the left lower kick panel Power Seat(s), Illuminated Entry Module, Power Door Lock Switches, Remote Control Door Lock Receiver, Power Door Lock Control Module. Do you have a problem with any of the other components listed ,if no the breaker is good . Do you have

The wiring. You need a multimeter to check the wiring.

any check engine light on>?

right side of the car after catalytic converter

bad water heat valve under passenger seat undercarrier

if doesn't engage because is out of freon or low pressure switch is not working or disconnected other then that clutch coil is not good or is disconnected

you need to have a a/c mechanic look at it. to make sure the a/c system works

you may broken a vaccuum hose coming from the engine on the right side of the car, the vacuum hose runs to the a/c dash switch most the time the hose brake by front right side shock

pull serp belt could be waterpump if it goes away look for bad part spin all pulleys by hand to see whats bad if you start it with no belt and it still knocks you killed motor get lookin for new one

Hi

Have you checked the EGR valve, and or the air flow sensor? both could cause it not to start!

Also ensure the earth battery lead has a good connection to the car body from the battery.

Please get back to me if your unsure about these parts.

Regards
Dan

It will be expensive . go to the service dealer and purchase a key. then they will reprogram the key to the immobiliser in the car