20 Most Recent 2002 GMC Envoy XL - Page 8 Questions & Answers

When?

Rasiator or brake pads?

Make sure your thermostat is opening and that the electric cooling fans are operating. Also make sure the cooling system is full.

This sounds like a loose connection/bad wire somewhere for the low beam lights. Can't really give you more information without seeing the vehicle, and wiring diagram for the circuit. Usually, things that go on and off when hitting bumps are connection/wiring problems. The fact that one of your low beam headlamps burnt supports this theory. Bad connections or wiring mean lower voltage, thus higher amperage at the bulb, motor or whatever it's running, which makes them burn a lot quicker.

Your fan clutch could be going out...iin other words, it may be turning, appearing to be fine, but not fast enough therefor, not cooliing the engine enough.

could be ur trans or check trans cable

here is a link that might have the name of your part. and just a thought, instead of asking a GM dealer about the part just go to an auto body shop and get the name of your part. anyway here is the link  http://www.autopartswarehouse.com/search/parts.php?N=10505+1623+4294963700&ddKeyword=

disconect the battery then reconect that should spit the cd out sound as if there is a lazer problem

It did, if it is calble controlled then the cable broke from either the gear selector under the dash or on the transmission . 3 places it breaks at 1 the gear selector under the dash or the center console, connection came out or broke 2. on the transmission gear selector area there is a bushing that it connects that breaks off, 3. inside the transmission, the prawl got loose (rare but happens)