Problem with my = 2001 Chevrolet Malibu 3.1 V6.
Service vehicle soon, check engine code P0442.
The intake manifold gasket was replaced about 2.5 months ago.
Question = About 2 weeks ago the service vehicle soon light came on, but it
would clear when car was restarted. Yesterday, dash would not light up and
auto head lights would not come on immediately after car was started, but
everything would start working after a few seconds. Now various warning
lights will stay on and gas gauge will not work after a start, but everything
then starts working after a few seconds. Now the check engine light is on
with a code of P0442. These problems do not occur each time the car is
started. A different combination of head lights not working or warning lights
occur each time.
Be sure to check that the battery cables are tight on the battery, and then follow the
ground cable down to make sure it is clean and tight. There are also several grounds on
the transmission - engine bellhousing.
Sounds like most of the electrical problem are related, except for the Check engine light,
code P0442 is a small leak in the Evaporative Emission System. Possibly a bad vent valve
in the back, or a fuel tank sending unit seal leaking.
The electrical problems may all be related to the Body Control Module. This BCM controls
the functions of the things you are having problems with. Also could be the ignition switch.
The ignition feeds power to many of the cars systems, including the lights you have
problems with, and the BCM, along with other things. If there was a problem internally to
the switch, you would loose power or have low voltage to these areas.
I would also start pulling on various wiring harnesses to check for a loose connection that
would effect all these systems.
2006 Chevy 6 CYCLE
Warning lights = LIGHT ORANGE
Repairs = GAS CAP LIGHT COMES ON
Question = what does it mean when this light comes on? How do I get to fix it? Thanks.
Answer: If you're sure it is the gas cap light coming on, it usually just
means you need to tighten the gas cap. This light will come on if the
emission control system cannot make a good seal on the system and
the most likely thing loose is the gas cap. Easy fix. But if there were a
leak in the evaporative emissions system that causes a large leak, the
computer could view this a loose or missing gas cap. It would give the
same conditions of a large leak as a failed part that causes a large
leak. A scan of the system and testing for leaks is what is needed. You
could have a bad EVAP vent valve. This would also cause a large leak
that the computer may see as a loose or missing cap.