Best Answer

if engine runs fine but computer has [large] emissions leak , check too see if gas cap is on all the way or missing,

User Avatar

Wiki User

โˆ™ 2011-09-13 22:58:40
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What could the problem be on a 2004 cavalier with the codes for a large leak with the emissions?
Write your answer...
Related questions

What could cause the dome light and the sun roof not to work in a 97 cavalier?

There could be a problem with the power of common ground to the Cavalier light and sun roof. Check the fuses and wiring for the problem.

Jeep Cherokee check engine light?

It could be an emissions problem or a catalytic converter problem.

How could you know the problem on a 1997 Cavalier if the check engine light is on?

take car to autozone and ask them to read codes it wont cost anything and they will tell you what you need to fix it

Chevy Cavalier 2000 has check engine light and everyone is telling you to check your gas cap or it could be a problem with your emissions system with the canister any ideas what this could be?

Use a code reader to check the engine diagnostic code using an OBDII code reader. If it's the gas cap you may need to replace the cap then reset the diagnostic codes by following the method described in the owners manual.

Why is the check engine light on in your 97 Honda civic It is due for an oil change could that be the problem?

The check engine light indicates a problem in the engine controls or emissions system, have the computer codes read and you will know exactly what your car is trying to tell you.

Your check engine light came on in my 2005 cobalt what could it be?

There could be one hundred & one possibilities... that's why you have to plug in a scanner & pull the code or codes. The problem is emissions related... meaning the car is polluting more than it should.

What could be the problem with a 1997 Mazda 626 check engine light on?

something that affects the emissions.

92 cavalier wont start put new fuel pump in still did not fix problem put fuel regulator on still no fix also put fuel rails and injectors on but still no fix What could be the problem?

Read the error codes for sensors problems.

1999 Chevy Cavalier dash light are always on for ABS and Brakes What could the problem be?

Bring to a shop that has an ABS scanner to determine the problem

Why does my cavalier engine revs by itself and drives like I am flooring it when I don't have my foot on the gas pedal?

i have same problem--some say need to take it to dealer to get it scanned for codes---could be a cracked intake vacumm hose??---=but it is dangerous

What could be tha problem when a check engine light comes on in a 1999 mercury tracer Engine does not seem to have any problems?

Check the engine. ===================================================== There is a problem with something that effects the emissions of the engine You need to have the vehicle scanned for any trouble codes to help diagnose and then repair the problem

If a Chevrolet Cavalier seems like it is not getting gas when you step on the pedal what could be the problem?

I had this problem and took my 1990 cavalier to a shop. Nothing came up on diagnostic so they decided my ignition module and coil packs needed to be replaced. This fixed my problem but costed me around 450.00!

Why is the abs light on in a 2000 Chevy Cavalier?

The abs light being on for a 2000 Cavalier indicates a brake problem. The brakes could lock up when the pedal is pushes hard, or pulse.

Could a flat tire make the check engine light go on a 02 cavalier?

The check engine light (service engine soon) comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, the problem is in the emissions or something that is affecting the effectiveness of the emissions, but other causes can trigger the light to come on, too. To determine the cause, the vehicle will need to be taken to AutoZone or a shop that has an OBD2 scanner, or for 1995 and earlier models, an OBD1 scanner, While a scanner will not give you the magic answer, it will give you a code that narrows down the problem area.

What if your 94 cavalier runs then dies If you let it sit for 20 it starts back up and will run again What could be the problem?

Had same problem and changed the ignitionmodule, problem solved and runs great

What could the the problem if the engine of your Cavalier 2001 makes a clicking noise?

check oil and oil pressure if good sell it

Your 1997 Chevy cavalier wont goe in reverse and the headlights come on when you put it in reverse you have no idea why?

Could be a linkage problem..

How is global warming a social problem?

Global warming is a social problem because of many factors. Factors like emissions for example, emissions tests are only in a few states. With more emissions tests on vehicles, this would lessen the global warming, not by leaps and bounds but it would help. If more people recycled, and cleaned up waters this could help.

Why Car engine stalls when turning?

If a car engine stalls when turning, there could be a problem with the power steering pump. There could also be an issue with an emissions control device.

Could a faulty ignition coil lead to increased emissions?

If it's weak you might have incomplete combustion or possibly an irratic misfire, but most likely the problem that causes increased emissions is elsewhere. An increase in hydrocarbons is often caused by the O2 sensor or possibly the EGR valve. You could also have a problem with plugs, distributor, rotor or plug wires.

What does the code P1443 and or 420 mean on a 96 Ford Escort?

The p1443 code means a problem with the evaporative emissions system. There could be a problem with a broken or unhooked vacuum hose. Also could be a problem with the solenoid or sensor between throttle body and evaporative canister.

Your Renault Laguna anti pollution warning light is flashing any idea why?

Your computer has detected a problem with the emissions system, it could be an improperly sealed gas cap, O2 sensor, evap problem. or just indicates the need for a tune up. You will need to have the computer codes read to find out what part of the system is malfunctioning.

1997 cavalier spark plug?

ACDelco 41928 trust me. Any other plug could throw CEL codes or make car run worse

You have a 2004 Cavalier and the check engine light has been on for 8 months now it says emissions large leak when it was checked any ideas?

My car was diagnosed with this problem today also. I was told by my good friend (who is also the mechanic) that the leak could be in many places and the best way to find out where is to complete a test in which 'smoke' is pumped through the system to find the area of the leak. It could be due to a hose disconnected, or, a part in the emissions system could need to be replaced. You won't know until it is properly tested. Apparently this is QUITE common in cavaliers. Good luck.

What is a purge solenoid?

It is in the emissions system to keep gas fumes from venting into the atmosphere. If you have a code for it does not mean that it is bad. The problem could be as simple as a vacuum leak.

Study guides

Create a Study Guide