20 Most Recent 2002 Chevrolet Silverado 1500 - Page 8 Questions & Answers

your master cylinder leaking onto firewall? do you have brake fluid coming into the car around under steering wheel? if so you have bad master cylinder, if on a hill you hold brake and petal moves down under foot pressure the master cylinder is bad

Cranking & Turning Over is the same thingThe Fuel Pump may be failing

try the distributor cap

Could be the blower motor, or the resistor, or a bad connection in the harness. Someone would need to check for power and ground at the motor first.

Have you checked the EGR valve? The P0449 EVAP code is normally or the purge solenoid on the intake. Unplug the line that feeds the EVAP system from the purge valve and connect a vacuum gage. It should flutter while it is activated. If not, that could be the culprit.

IF YOU HAVE CKED FOR A SHORT THEN MOST LIKELY YOU HAVE A BAD INJECTOR. YOU CAN UNPLUG ONE INJECTOR AT A TIME UNTIL IT STOPS BLOWING FUSES OR YOU CAN TAKE IT TO A REPUTABLE TECH WHO CAN HOOK IT UP TO A SCAN TOOL AND IT SHOULD SHOW THE BAD INJECTOR.

Common problem is the switch on your transfer case that sends the signal to front diff. Sometimes it's the actuator on the front diff. but 90 percent of the time its the sensor on your transfer case.

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Have you even studied obd2 systems at all, or youjust want to throw away money?You use the codes you get to diagnose a system with the fault,then only replace a part after componenttesting & it fails a testYou don't replace every sensor for no reasonYou should know the mileage on them & have an oscilloscope put on them to check switching times

Use a 3 way puller.

Block the wheels and go under the truck, have a helper move the gear selector through the gear positions and watch the lever to see if it moves.

Do you have someone slowly pressing on brakepedal,as you open the bleeder valve & close beforethe pedal reaches the floor & repeat 8 times or soYou never pump brakes when driving or bleedingDo not let the master run dry or you start overI never had that issue in 48 years & I have no specialabilities