answersLogoWhite

0


Best Answer

Need to pull codes to find out what is happening. Pull the codes from the computer, match the code to the troubleshooting procedure, follow the procedure to find the source. Repair the source, light will go out if that was the only problem. There are "monitors" or self tests the computer runs the car through a drive cycle, if a problem occurs, it may not run all of the self tests until that problem is taken care. Therefore, another problem may exist. It is emission related. OR hook up a scanner that is capable of clearing codes, and hope that none are still active. Disconnecting the battery can create other headaches and will not likely solve your dilemma. Best bet is to contact the local snap-on dealer and have him refer you to a known good shop that specializes in this technology-he will know. The " check engine light" is by far one of the most misunderstood technological advances by the public. This is an needed in-depth understanding for the public. It is a warning light that is illuminated when there is a problem affecting the EMISSION SYSTEM only. Emission system being the pollution control system. Don't get a hard on against it as it is a good thing once you understand it. One point that was brought up a a recent meeting of technicians was that the amount of hydrocarbons is greater when the gas cap is left off than when the engine is running. Hydrocarbons are part of pollution emitted as gasoline evaporates. Going a step farther, one facet of the emission system is the "Evaporative" portion. This is when the fumes from the gasoline are leaking from the system into the outside air. This is one part of the emission system that can trigger a check engine light. I would say that about 7% of the vehicles that have a check engine light are the result of a loose or inadequate gas cap. But understand that many scenarios are possible with the "check engine light" The vehicle's powertrain computer (note that some vehicles have 17 different computers) will run a series of self-tests. They will only run under certain criteria. And they can be vastly different from manufacturer to manufacturer. Some self-tests are not run until preceding ones have run successfully. So if there is a problem in one particular area that is preventing another self test from running, you can have a situation where one problem is fixed, but another still exists. If you fix a problem and drive the car through a drive cycle that sets the monitor (or self test) the light will go off as it passes that criteria that triggered it in the first place. After 1996, the auto industry went to a idea called OBD II (on board diagnostics). This was to get all the manufacturers onto a similar plane for troubleshooting and powertrain control. While they still differ vastly, many corrections and adaptations were made for technicians to better fix the check engine light problems. Prior to this there were so many different and poor troubleshooting data from a check engine light problem that resolving the problem was much more difficult. Many early warning light of this nature were set to illuminate based on mileage. An Oxygen sensor was one of the things that were meant to be replaced when that mileage was hit. This is much like many current "Change oil lights

User Avatar

Wiki User

โˆ™ 2005-11-03 02:31:22
This answer is:
User Avatar
Study guides

Add your answer:

Earn +20 pts
Q: Toyota Sienna 2000 engine will hesitate when shifted to drive check engine light appear on and off after a minute the light will remain steady?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

How do you replace or repair a broken rear door handle on a 2002 Toyota Sienna because it does not appear to be the same as the 2001 Sienna on the Find One Find All website?

Upon further inspection, the rear door handle assembly on the 2002 Toyota Sienna IS the same as that shown on the Find One Find All website, so never mind.


What is a sentence for Misprize?

I hesitate to appear to misprize my native city


Would a light source moving away from Earth appear blue shifted or red shifted?

Red-shifted. The magnitude of the red-shift would tell us the radial velocity of the object.


How many cat converters does a 2001 Toyota Sienna have?

I am just replacing 2 of 3 on my 2000 Sienna, so I am willing to bet that 2001 also has 3. I am told that there is one IN the exhaust manifold, but there appear to be 3 on the Y shaped replacement part (appears to be at LEAST 3' long). I am on the sight to research exactly WHERE they are.


How do you reset Maint ReqLight on tToyota 2004 Seinna?

A person can reset the maintenance required light on a 2004 Toyota Sienna by holding down the odometer trip button. A series of zeroes will appear, which indicates that the light has been reset.


What term describes the wavelengths of light from a star that appear to be longer than they actually are?

red shifted


How do you reset the 'maintenance light' on a 1999 Toyota Sienna?

With the ignition switch in the off position, hold in the hold in the trip odometer. Now turn on your key and you will see a series of zeros begin to appear. Once that stops, your maintenance light will be reset.


Does the universe have a blue shift or a red shift?

Speaking generally, most objects in the universe are red-shifted, that is they appear to be moving away from us. There are exceptions to this, obviously. There are plenty of objects in our own galaxy that appear to moving towards us. Plus the Andromeda galaxy appears to be on a collision course with the Milky Way. Objects moving towards us would appear to be blue-shifted.


What direction do the object appear when the stage is shifted towards you?

The object appears to move up and away from you as you shift the stage toward you in a microscope.


Does the medium of space make distance stars appear to be more red shifted only because they are farther away?

Distant stars appear red shifted because they are travelling away from Earth. It just happens that more distant stars are moving faster, so there is a greater red-shift the further a star is from the Earth.


What is the name of the Toyota warranty font?

this font did not appear yet but we are trying to make it


Can you import a Toyota from Mexico they have small diesel trucks?

Toyota does not currently appear to be selling any light pickups with diesel engines in Mexico.

People also asked