When I got the car, Starting it, I have to hold the gas down or it won't start. WHen I drive more than 15 miles at a time, the oil light flashes and beeps for days. (it's very annoying) Almost annoying enough to drive the car off of the road into a brick wall. (if I could even drive it right now) The headlights have never been very bright, i've had it for about three or four months. I was driving it home from work one day, when I noticed a power shortage, the radio keep going on and off as I was turning.. And everything got dim. So I turned the car off at a red light, thinking if I turned it back on, it would be ok. The car was dead. I had it jumped the next day by AAA, but the guy that was doing it, seemed as clueless about cars as I am. Jumped the battery, and the car would stay on and work normally for about 3 min. then It would die. Went down the street in the car and it would die after going 20 feet. I had to have it towed back to my house. What is wrong with my car? (ohh and side note the thing that is to be clamped onto the battery, was very lose. and AAA guy tightened it.)

When the gas-cap is plugged, you build up vacuum in the gas- tank and cause the gas flow to stop.
Use premium gas only, ETHANOL in the mix is attracting moisture/water which is part of the problems.

on yukon bring up display and either push to reset button or press and hold down the trip odometer button [dont know what year vehicle u have] and it will reset back to 100% also your manual has how to reset the oil as well

P0103 Mass Airflow MAF Circuit High

check battery out and battery connections real close

Replace crank sensor. Just above oil pan between engine and transmission.

Unlikely if it was not knocking or overheated.

Turn the ignition to the "ON" position without starting the vehicle. Press the gas pedal in 3 times, holding it in for 2 seconds each time. When the "Change Oil" light flashes, start the vehicle.

if it's not going onto the ground, and it's not being burned, check the positive crankcase ventilation and the exhaust gas recirculation valves for oil seepage...also check your air filter, if its got oil on it replace the pcv valve.

hi to reset the oil life remove the fuse pannel door on the drivers side of the dash and check to see if there is a RED button with RESET on it turn the key to run push the RESET button and watch the change oil light if it flashes then press and hold it till it goes out If it dosent have a RESET button turn the key to RUN ENGINE OFF pump the gas pedal 3 times with in 5sec the light will flash then go out

h) Engine Oil Replacement Reminder
Light (for vehicles sold in U.S.A.)
This light reminds you when to replace
the engine oil.
This light will come on when the ignition
key is turned to “ON” and will go off after
about a few seconds.
When you drive for about 8000 km (5000
miles) after the engine oil replacement,
this light illuminates for about 3 seconds
and then flashes for about 12 seconds
with the ignition key turned to “ON” position.
If you continue driving without the
engine oil replacement, and if the driving
range exceeds 12000 km (7500 miles), the
light will come on after the ignition key is
turned to “ON” position. The light will remain
on thereafter.
If the light is flashing, we recommend that
you replace the engine oil at an early
opportunity depending on the driving and
road condition. If the light comes on, replace
it as soon as possible.
You need to reset the light after the engine
oil replacement. Reset the light by
following the procedure below:
1. Turn the ignition key to the “OFF” position
with the odometer reading shown.
(For details, see “Odometer and two
trip meters” on page 136 in this Section.)
2. Turn the ignition key to the “ON” position
while holding down the trip meter
reset button.
Hold down the button until the light goes
off. Before the light goes off, it illuminates
for 3 seconds, flashes for 2 seconds and
illuminates for 1 second.
If the system fails to reset, the light will
remain flashing.


I copied this from page 143 of the owners manual for the 2004 4Runner