Chevrolet EVAP Diagnosis: Codes P0440, P0442, P0449, P0453
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Date: 2020-08-05
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Comments and reviews: 10
Russell
Yes, I did find the actual cause of my check engine light in my Chevrolet LS1 V8 powered Holden Commodore, on Wednesday, I was sitting at the service station waiting to use the air line to pump my tyres up.
When I started the engine back up, the check engine symbol became switched on (it's on an LCD screen), when I got home, I scanned it & got a P0171 code, previously, I got a P0174 code as well, I sort of noticed that the O ring was split & all hard on the fuel filler cap.
So, I bought a new cap on Thursday which has fixed the problem, the fuel tank wasn't holding any vacuum & I noticed that the idle speed changed (dropped) momentarily once I bought a new cap & fitted it onto the filler neck.
Since my car isn't fitted with a fuel tank pressure sensor no P0442 code is listed for the Chevrolet LS1 engine in Australia since Holden don't use one, all I can go off is the lean codes!
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Yes, I did find the actual cause of my check engine light in my Chevrolet LS1 V8 powered Holden Commodore, on Wednesday, I was sitting at the service station waiting to use the air line to pump my tyres up.
When I started the engine back up, the check engine symbol became switched on (it's on an LCD screen), when I got home, I scanned it & got a P0171 code, previously, I got a P0174 code as well, I sort of noticed that the O ring was split & all hard on the fuel filler cap.
So, I bought a new cap on Thursday which has fixed the problem, the fuel tank wasn't holding any vacuum & I noticed that the idle speed changed (dropped) momentarily once I bought a new cap & fitted it onto the filler neck.
Since my car isn't fitted with a fuel tank pressure sensor no P0442 code is listed for the Chevrolet LS1 engine in Australia since Holden don't use one, all I can go off is the lean codes!
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Smitty
Same body condition as my brother's '02 2500 HD (Duramax) was in 4 years ago.
Gotta love GM - they sure know how to make money! Sell the truck for 40 LARGE (at the time- much HIGHER now, rake in dough on sub-par parts, then 12 years later, it's going to the scrapyard, and people run right back to a GM dealer for another! Amazes me.
Great demonstration of why you ALWAYS need to verify a repair! I've had a few lately that have had more than one issue in the same system. Gotta slow down to go fast - take the time and CHECK.
Wish I could've seen the keychain - sounds like my kind of humor.
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Same body condition as my brother's '02 2500 HD (Duramax) was in 4 years ago.
Gotta love GM - they sure know how to make money! Sell the truck for 40 LARGE (at the time- much HIGHER now, rake in dough on sub-par parts, then 12 years later, it's going to the scrapyard, and people run right back to a GM dealer for another! Amazes me.
Great demonstration of why you ALWAYS need to verify a repair! I've had a few lately that have had more than one issue in the same system. Gotta slow down to go fast - take the time and CHECK.
Wish I could've seen the keychain - sounds like my kind of humor.
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wyattsoundlab
I have a 2003 s10 4. 3 v6 it runs great. If I start it up every 5-6 hours it starts just fine but after its sits 12 hours or so it won't start i smell gas strong and it has spark and the security light comes on I had a 1626 code I have checked from the key switch to the bcm and pcm everything is good is it a stuck injector flooding it. the injectors have never been changed
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I have a 2003 s10 4. 3 v6 it runs great. If I start it up every 5-6 hours it starts just fine but after its sits 12 hours or so it won't start i smell gas strong and it has spark and the security light comes on I had a 1626 code I have checked from the key switch to the bcm and pcm everything is good is it a stuck injector flooding it. the injectors have never been changed
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slime
love your vids. need your help you are in new york. I'm in the great state of Nebraska, football team is not the greatest even with new coach lol. Lost speedometer replaced sending unit on tail shaft of tranny sill no work been told mod behind glove box is problem can you give any insite 1992 chevy c2500 all it has is AC auto tranny 302254 miles can any one help thank you
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love your vids. need your help you are in new york. I'm in the great state of Nebraska, football team is not the greatest even with new coach lol. Lost speedometer replaced sending unit on tail shaft of tranny sill no work been told mod behind glove box is problem can you give any insite 1992 chevy c2500 all it has is AC auto tranny 302254 miles can any one help thank you
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Ezydusit
As I'm not a mechanic, it fascinates me how you mechanics get to the heart of problems. I really like watching your process of fixing cars. If you were my mechanic I know I'd be in good hands. Unfortunately I have to use the dealer, as there seem to be no local guys of your caliber near me. Thank you for your videos and sharing your knowledge of cars with us.
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As I'm not a mechanic, it fascinates me how you mechanics get to the heart of problems. I really like watching your process of fixing cars. If you were my mechanic I know I'd be in good hands. Unfortunately I have to use the dealer, as there seem to be no local guys of your caliber near me. Thank you for your videos and sharing your knowledge of cars with us.
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Derrell
I have that code, p0440. My gas neck is leaking when I go to filler up! Could that cause my code! The fact that it is leaking. I did look for the fuel neck assembly. GM discontinue that for the 2000 Chevy Tahoe. But I can get it from different places. So again the fact that my fuel neck is leaking when I put gas in it could cause that code?
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I have that code, p0440. My gas neck is leaking when I go to filler up! Could that cause my code! The fact that it is leaking. I did look for the fuel neck assembly. GM discontinue that for the 2000 Chevy Tahoe. But I can get it from different places. So again the fact that my fuel neck is leaking when I put gas in it could cause that code?
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SATAMAN
Eric, I've got a great suggestion. How about a greatest hits video of the top 10 rusted out POS that have ever been in a SMA video? This pristine, driven by a little old lady only on Sunday, special has got to be included. You could search every junkyard in Arizona and never see anything close to this bad.
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Eric, I've got a great suggestion. How about a greatest hits video of the top 10 rusted out POS that have ever been in a SMA video? This pristine, driven by a little old lady only on Sunday, special has got to be included. You could search every junkyard in Arizona and never see anything close to this bad.
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m3talc0re
Could you do these test without the 1, 000 scanner nobody here would have, please? I've got a persistent P0452 on my 02 silverado and I've yet to find a video to help me. Especially only having a more basic OBDII scanner and a multimeter.
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Could you do these test without the 1, 000 scanner nobody here would have, please? I've got a persistent P0452 on my 02 silverado and I've yet to find a video to help me. Especially only having a more basic OBDII scanner and a multimeter.
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ja
A suggestion on new videos would be a clock spring on a 2007-2014 GM full sized truck tahoe or suburban (GMC equivalent. And do the ABS module replacement on 1999-2006 GM truck tahoe or suburban. Thanks for the vids!
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A suggestion on new videos would be a clock spring on a 2007-2014 GM full sized truck tahoe or suburban (GMC equivalent. And do the ABS module replacement on 1999-2006 GM truck tahoe or suburban. Thanks for the vids!
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DiagnoseDan
You made great use of your Powerprobe Eric! Looks like that truck has more problems than just the engine light! Leaking exhaust, Abs malfunction, lots of rust. Is this going to pass inspection like this?
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You made great use of your Powerprobe Eric! Looks like that truck has more problems than just the engine light! Leaking exhaust, Abs malfunction, lots of rust. Is this going to pass inspection like this?
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