20 Most Recent 2002 Chevrolet Tahoe - Page 8 Questions & Answers

Usually that's just a combination of fuel and oil wicking up the threads. Make sure the plugs are torqued properly. Is there any other problem that led to the examination of the plugs?

check headlight bulbs all headlight bulbs

Try this: Alternate Method (w/o Scan Tool) 1. Clear all DTCs AND REMOVE THE SCAN TOOL. 2. Place the ignition switch to the OFF position. 3. Remove the HVAC/BATT fuse for a minimum of 10 seconds. 4. Install the HVAC/BATT fuse. 5. Start the vehicle. 6. Wait 40 seconds for the HVAC control head to self-calibrate. 7. Verify that no DTCs have set. Hope this helps.

yep, check filter first, then pump

You would have to have the fuel pressure tested, but the vague description could be several things. but to count of the pump you can have the pressure tested at most if not all Autozone stores.

I would perform a coolant pressure test because these engines are known for leaking intake manifold gaskets.Check and see if your oil is starting to turn a creamy tan color.

Contact Authorized Service Station!

DO some quick checks : fuel filter , fuel injectors (when was the last time you serviced the fuel injectors?) and last fuel pump ,hope this helps AJ

On Board Diagnostic Codes-- DO NOT tell you
what is wrong or what to replace

None of what you replaced was necessary for a PO178

Have it scanned and diagnosed professionally

Engine running ask someone to turn steering wheel for you . Look for power steering hose move like there is pressure. and noise from power steering pump . if not change power steering pump You don't really need power assistance when moving on the road ... where you need it more specially in parking or not really moving hope it helps

Check your power steering reservoir first. Hopefully it is just low fluid. Then suspect your power steering unit and hoses.

Is this an aftermarket cooler? Most trans cooler lines are in one tank side of the radiator. OEM lines have a plastic cap you slide back and a semi circle clip you need to remove from the groove on the fitting and the line pulls out. Aftermarket coolers have a barbed fitting, start with a bladed screwdriver between the hose and fitting to spread the hose as you pull. After you get the hose moved back, needle nose pliers can be used to pry the hose as you pull. If you just pull on the hose it tightens on the barb.