Question about 1998 Chevrolet Malibu

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Check ENG light and error code P1441

When I add gas or remove gas cap ... about 3min after starting engine I hear knocking near rear by gas tank and engine starts to stall. Any ideas. I'm thinking EVAP canister or fuel tank pressure sensor but don't know where either are located.

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Posted on Jan 02, 2017

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SOURCE: 02 monte carlo- EVAP code.

hi there, you see todays cars are so emmision friendly that not even the vapors from your tank can be released into the atmosphere so what they have done is all your vapors are put into a charcoal canister to absorb the vapors and the next time you start the car it has a purge solenoid open and burn the vapors off. if you look around the intake youll see a hose with a green cap follow it back to the charcoal canister and while your doing that just check the hoses and the hoses around the canister to make sure there is no holes or cracks in them and then follow the hose from the canister to the gas tank. if every thing looks good then i would replace the purge solenoid.

Posted on Aug 28, 2008

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SOURCE: My check engine light came on. I had it checked

Best not to ignore the check engine light because it also can indicate a serious running problem just as it is indicating a pollution problem now. I don't trust folks that have 'snap' answers for a given problem without any kind of testing (the fuel cap). This problem can be caused by split vent hoses or fuel filler hose, sensors that leak or read incorrectly--the list goes on. Smoke generator tests can help track this down but require intelligent analysis to replace or repair the correct component. Finding someone like this to take the time to be at least fairly sure of a cure before loading the car up with unnecessary parts is a rare find. Good luck!

Posted on Jul 17, 2010

  • 37 Answers

SOURCE: 2004 Chevy Cavalier 2.2 eco Automatic 94,000 miles

in my experience the usual culprit is the evap cannister. the problem is it gets moisture in it and freezes during winter thus cracking the plastic. if you lay under the car and look at the evap box it black plastic and if you see a loose or cracked hose or the box itself is cracked that is most likely it. as a side note you can check the gas cap and buy a new one to see if that rectifies the situation. lastly i don't think the gas tank should be suspect as you would probably notice if gas was leaking out of the tank. if you take the car to a dealer or shop they can do a smoke test and determine where the leak is.

Posted on Oct 19, 2010

  • 2 Answers

SOURCE: Error codes 0449 and 0455. Replaced fuel cap and

I do not think canister, but a little bulb on or beside the canister is the problem. it seem to me i seen this on motorweek, on the garage part. hope this helps.

Posted on Jan 03, 2011

  • 1 Answer

SOURCE: check engine light coming on. code reads small

have u found a solution i am having the same problem but cant resolve

Posted on Jan 04, 2011

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2 Answers

What happens when you drive without a gas cap


ok on todays automobiles the gas cap does more than just seal the gas tank. Now they run a return line to the tank. this does 2 things. it returns un used fuel and vapors back to the tank , and it pressurizes the tank to help improve the fuel pump.

Now as it is possible running without the gas cap may cause problems I am not 100 % positive that is your only problem.

It sound like the knock sensor is detecting the knock you mentioned and is trying to retard the timing to fix it . In doing so it has retarded it to far causing the engine to loose power and eventually stall. I would first replace the gas cap. then run a good gas additive to a full tank of gas to clean out any water and dirt that may have gotten into the tank while the cap was off. now the issue of the knock as you described. is it a knock or a ping? A knocking sound is loud metallic hammering noise. a ping is a ting not very loud. if it is a loud metallic sound I would have a reputable mechanic check it soon, as it could be a serious issue. Ping can be caused by bad or weak gas or cheap low octane gas. I would run a mid grade gas in it and see if it fixed the issue.

Jun 02, 2014 | 2004 Dodge Neon

1 Answer

Hello I have 1997 toyota Camry with code 450 and pending code 446 I took the gas cap off this morning with the car running and screwed it back on tight and that's where I got the pending code I hear it...


These codes usually trigger the check engine light to ON if the car is fueled or fuel tank cap is removed with the engine in start position.
To delete the codes, remove the key from ignition, remove the battery negative terminal for 5 Seconds or more. Reconnect the battery terminal, start the engine, let it idle for 10 minutes.
Error Code: P 0446
Description:
Evaporative Emission (EVAP) System, Vent Control - Circuit Malfunction
Possible Cause:
Wiring.
Evaporative emission (EVAP) canister purge valve.
Engine control module (ECM).

Error Code: P 0450
Description:
Evaporative Emission (EVAP) Pressure Sensor - Circuit Malfunction
Possible Cause:
Wiring.
Evaporative emission (EVAP) pressure sensor.
Engine control module (ECM).

Hope that will work. If the problem persists contact a service technician.

Feb 26, 2014 | Cars & Trucks

2 Answers

My check engine light came on, 'i had it read, the read said that the coils were bad, I filled the gas tank and the light went off, what's wrong?


Hard to say. The gas cap might have been loose. That will turn the Chk Eng light on. When you filled the gas tank you made the cap tight again.

Get the codes read again if the light comes on again.

Jan 05, 2014 | Ford Expedition Cars & Trucks

1 Answer

P1441


Check for fuel leeks but suspect a problem with fuel pump ?

Dec 11, 2013 | 2003 GMC Envoy

1 Answer

P1441 code on2001 740il


2001 bmw 740iL with code p1441 is the leakage diagnostic pump, you will need to check the connection to the pump and also test the evap system for any leaks, you may have a leak in the system, may be a loose gas cap or a line leaking, this system is for the fuel vapors, there are lines that run from the fuel tank to engine and is filtered into a canister and theres valves and leakage pump in lines, a smoke machine would be needed along with a scan tool to check valves and get readings from system.you can check the gas cap and look around for broken lines. good day

Apr 11, 2011 | BMW X7 Series Cars & Trucks

1 Answer

Check engine light, code p1441


This is the OBD II code to indicate EVAP system flow during non-purge. Sometimes this is caused by not completely screwing in the fuel cap.
Reset the code (or have it reset), and be sure to always fully tighten the fuel cap. If the problem persists it is caused by a leak in the fuel tank or line.
Check the following:
  • Faulty fuel cap
  • Leak in fuel tank/fuel lines

Mar 04, 2011 | 2000 GMC Jimmy

1 Answer

I got a Error Code P1441 Definition EVAP System Flow During Non-Purge Conditions Possible Causes: EVAP purge valve, purge pipe, or the charcoal canister has a temporary blockage (this fault could...


P1442 usually gas cap. P1449 usually vent solenoid. P1441 usually always a faulty FTP sensor. Very problematic to Malibu, Grand Am Cavaliers and Aleros. That would be my first area to check. They are also known for poor wiring connections at the Left rear passthru connector to the fuel tank and vent solenoid, but not necessarily for that code.

Jan 25, 2011 | 2001 Pontiac Grand Am SE

3 Answers

Engine light came on right after I'd pumped gas. I have checked my gas cap etc. all fluids are ok. I thought it would have reset itself, but it hasn't. It's never came on before.


try disconnecting the + positive cable to the battery for a few minutes and allow the system to reset itself ...then reattach it this should work and make sure you hear 3 clicks when closing the gas cap

Sep 08, 2009 | 2001 Toyota Corolla

1 Answer

P0442 code on 02 ram 1500


It is a vacuum leak from the engine to the gas tank. Did you leave of the gas cap. May just be a faulty gas cap. Filler neck could be cracked. Check hoses going to tank for cracks. To test the gas cap you can place a plastic bag on it and screw it on. You have to drive 20-50 miles to clear code.

Jun 15, 2009 | Dodge Ram Pickup 1500 Cars & Trucks

2 Answers

P1441 PROBLEM WITH MY BUICK PARK AVENUE 1997


P1441 Evaporative Emission (EVAP) System Flow During Non-Purge
The evap system is your egr valve, carbon canister, pcv valve, gas cap, and fuel tank vent, The most common fix for this problem is a new gas cap and then your done. It is about 15 dollars and then you pass smog. If this has been of any help please reate. Thank you

Feb 12, 2009 | 1996 Buick Century

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