1999 Chevrolet 1500 Pickup Questions

Get answers to questions about your 1999 Chevrolet 1500 Pickup at RepairPal. Find solutions, diagnose problems and get back on the road.

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service engine light on and blinks every now and then

Speedometer is not working now. Transfer case is 246 gm. Engine is a 5.3. Had code for vss,502 I believe, replaced sensor and cleared code. Need help thanks.

I changed the oil pan gasket and the low oil level lights comes on and the antifreeze looks brown now.

I checked fuses bought new relays replaced switch

My battery light comes on and my security system blinks and it wont start. I have tried the open/close door and turn signal up/down then start, worked once, Lock/unlock door twice, worked once. When I unlock/Lock/Unlock it activates the security system then wont start. The system started blinking while I was driving, it would stop and start again when I hit a bump. Dont know what to do.

My 4x4 switch says I'm in 4 wheel low, I am not. It's in 2 wheel. I've changed the actuator motor twice now, both salvage parts. I've changed the 4x4 switch on the dash board. It still says I'm in 4 wheel low. I've jacked the tuck up, only rear wheels spin, and it goes full speed. Any ideas on where to go from here?

Every so often a loud clanking noise will happen but it's not constant. I have noticed a power loss when goin down the road. could a push rod or a valve cause that?

Before replacing steering column, truck would start just fine. Now I can get any gas to the carburator

as the warning lights come on the tach, speedometer,and guages go down to the bottom. they go to normal quickly. truck keeps running normally. sometimes they flash alot sometimes not at all

almost impossible to get it back out. usually the lights on switch wont work.

Loseing water out the reserve tank. Having to add water every day. No visiable leaks. Replaced the pump and new seal. I do have heat when its turned on. Was told the Heater control valve could be closed shut.but no leaks inside or outside the truck

i also drained about two gal of waterout of my oil pan

Im a control expert n i want to bypass the passlock with a 2.4k resistor. Mine has red, yellow. I know i tap into one of them n hook other end of resistor to what color?