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Check engine light on Code PO442 is showing already change
Check engine light on Code PO442 is showing already change gas cap car starting to use more gas … read more
Roy
Roy
shop foreman
Associate Degree
4,528 satisfied customers
Each time I put gas in it, it acts like it doesn't want to
Each time I put gas in it, it acts like it doesn't want to start afterwards. Once I give it gas, it starts and runs rough for a couple of minutes until I drive a block or two. It never does that at an… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
30,359 satisfied customers
I put octane booster, fuel injector into my ATS Cadillac 2
I put octane booster, fuel injector into my ATS Cadillac 2 bottles over 2 weeks before refuels. Now check engine light is on with a p0454 code for evap emissions. How bad is the damage?… read more
Clifton B.
Clifton B.
nissan master auto tech
Associate Degree
4,522 satisfied customers
I'm getting a PO446 code on my 2008 Escalade and I can't
Customer: Hi. I'm getting a PO446 code on my 2008 Escalade and I can't seem to figure out why. I've replaced everything buy the canister and the code still persists. … read more
Gm Tech (Cam)
Gm Tech (Cam)
Cadillac Mechanic
Vocational, Technical or Trade Scho
1,090 satisfied customers
Hello I have a 2005 Cadillac escalade With a 6.0l engine. a
Hello I have a 2005 Cadillac escalade With a 6.0l engine. a few weeks ago I started to get a light on the dash for the gas cap. I replaced the cap. with in a few days I went to the gas station and now… read more
BOBBYSS
BOBBYSS
Automotive Repair/Damage Investigator
Associate Degree
14,589 satisfied customers
I have a 2008 Cadillac Escalade ESV with a P0449 code. We
I have a 2008 Cadillac Escalade ESV with a P0449 code. We have changed out the EVAP Vent Solenoid and Pure Solenoid but the code is stillt notclearing. Is there a special way to clear the code like un… read more
Eric
Eric
Retired
N/A
33,772 satisfied customers
My 2008 ctsshuts off when ever remove the gas cap.Runs great
My 2008 cts shuts off whenever I remove the gas cap.Runs great but hard to restart after refueling and reinstalling gas cap have to press down on acceleration pedal to restart.… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
30,359 satisfied customers
2002 cadillac deville: P0446..the Purge Solenoid Valve..Canister
I have a P0446 Code on my 2002 Cadilac Deville. I have replaced the Purge Solenoid Valve and the Canister Solenoid Valve. I checked for any kinked or bad lines or connections. Reset the MIL and it ret… read more
Gm Tech (Cam)
Gm Tech (Cam)
Cadillac Mechanic
Vocational, Technical or Trade Scho
1,090 satisfied customers
Cadillac: My Service Engine Light..my fuel..fuel guage doesnt work
Cadillac Techs only, please. I have a 2001 Cadillac Seville STS. My "Service Engine Light" is on and my fuel guage doesnt work. I had the codes read and it showed Po340, Po446, and p1639.… read more
Jerry Newton
Jerry Newton
Cadillac Technician
Vocational, Technical or Trade Scho
1,738 satisfied customers
Cadillac Escalade ESV had auto zone check the code p0446
had auto zone check the code p0446 haveing problems filling the truck with fule pump keeps kicking off auto zone said it could be four thing need help narrowing it down 1 pureor vent solenoids defecti… read more
Ron Z.
Ron Z.
Vocational, Technical or Trade Scho
20,106 satisfied customers
05 escalade: check engine light..evap leak code was present..fuel cap
I have an '05 Escalade ESV. The check engine light was on and the evap leak code was present. I replaced the fuel cap since it was easiest, did not work. Replaced the purge valve, the old one had loos… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
30,359 satisfied customers
2000 Eldorado: I replaced the gas cap and EVAP solonid relief valve
This is a follow-up question. 2000 Eldorado error code 446. I replaced the gas cap and EVAP solonid relief valve, reset the light and it came back on after a few days. Error code po446 registered agai… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
30,359 satisfied customers
cadillac escalade ext 2007 cadillac escalade ext has a check
2007 cadillac escalade ext has a check engine lite on and computer code p0449 . what is the best way to go about finding and the location of the problem and making the repairs ?… read more
Ron Z.
Ron Z.
Vocational, Technical or Trade Scho
20,106 satisfied customers
i have a 2004 cadillac cts. 3.6L my check engine light came
i have a 2004 cadillac cts. 3.6L my check engine light came on and it gave me 2 obd codes P0446B Evaporative Emission Vent System Performance and P0496B Evaporative Emission System flow during non-pur… read more
Mike S.
Mike S.
Vocational, Technical or Trade Scho
8,063 satisfied customers
2005 Escalade: with the Tighten Fuel Cap fault..vent solenoid
I was online with you a week ago about my 2005 Escalade with the "Tighten Fuel Cap" fault. You suggested replacing the CVS (canister vent solenoid). This did not work. Help!… read more
Gm Tech (Cam)
Gm Tech (Cam)
Cadillac Mechanic
Vocational, Technical or Trade Scho
1,090 satisfied customers
2005 Cadillac Escalade EXT: fault with the Tighten Fuel Cap alarm
I have a 2005 Cadillac Escalade EXT that continues to fault with the "Tighten Fuel Cap" alarm. I've taken the truck to the dealer and after three new gas caps and many smoke test and fault resets, the… read more
cartech
cartech
master tech
High School or GED
3,324 satisfied customers
Hello! I have a 2004 Cadillac CTS with the 3.6 V6 and have
Hello! I have a 2004 Cadillac CTS with the 3.6 V6 and have a unique problem that my Cadillac dealer can't even figure out. What it's doing is everytime I hear the fuel pump making like a "washing mach… read more
Jim
Jim
Vocational, Technical or Trade Scho
1,491 satisfied customers
2003 cadillac cts: i had the fuel pump replaceed and the noise went
i have a 2003 cadillac cts the fuel pump was making alot of noise and when i filled up with gas it was hard to start. i had the fuel pump replaceed and the noise went almost completely away but it is … read more
Michael Moore
Michael Moore
Team leader, bumper to bumper tech.
Associate Degree
2,870 satisfied customers
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Meet the Experts:

Jerry Newton

Jerry Newton

Cadillac Technician

1,738 satisfied customers

ASE Master Technician, L1, Master GM Technician. Over 20 years of bumper to bumper GM experience.

Dave Nova

Dave Nova

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ASE Master Certification. GM World Class Certification

Gm Tech (Cam)

Gm Tech (Cam)

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1,090 satisfied customers

GM Grand Master Technician 2007. 14 years experience.

John

John

ASE Certified Technician

941 satisfied customers

ASE CERTIFICATIONS A1-A8 & L1 / 40 YEARS AUTOMOTIVE EXPERIENCE

Chris (aka- Moose)

Chris (aka- Moose)

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16 years of experience

George H.

George H.

ASE Certified Technician

783 satisfied customers

ASE Master Tech 15+ Years

Don - Mo Lurch

Don - Mo Lurch

Cadillac Technician

705 satisfied customers

GM, Cadillac Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics.

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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