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While driving the check engine light is flashing. At idle
While driving the check engine light is flashing. At idle the light stops flashing and the car ruff idles. There is a gun power like smell coming from the engine area and the tail pipes. You can see t… read more
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Need someone now who can stay with me: 2004 Cadillac DeVille
Need someone now who can stay with me: 2004 Cadillac DeVille multiple misfire P0300. Code reader live data shows misfires all over, but mostly cylinders 1,2,3. Also have P0742 code. Tools I have... Co… read more
Dan
Dan
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Missing going down the road. just changed the coil pack on
missing going down the road. just changed the coil pack on the front of the northstar due to p300 and p304 codes. smoothed it out at idle now rough going down the road … read more
Clayso
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Need help with which parts to buy cadillac dts 2006 Error
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Chad Farhat
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My Caddy Deville 2003 Base misfires, rough ride especially
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I'm working on a 2003 Cadillac CTS 3.2L. I replaced the
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Dan
Dan
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Cadillac Deville: my 2001 Cadillac DeVille is idling rough
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George H.
George H.
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Cadillac Deville: I have a 2003 cadillac deville with a 4.6
I have a 2003 cadillac deville with a 4.6 litre engine. Am getting a P0305, a misfire on cylinder 5. Have replaced all spark plugs and coil pack. Am still getting the same code. Thanks… read more
Jerry Newton
Jerry Newton
Cadillac Technician
Vocational, Technical or Trade Scho
1,738 satisfied customers
Cadillac deville: Hi, 2003 deville question, 0300 code #6 misfire,
Hi, 2003 deville question, 0300 code #6 misfire, upon acceleration at about 2000 rpm i seem to get a smoothing out of the rough idle and the feeling of more steady even acceleration however atidle or … read more
shawnrbaldwin
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Cadillac Deville: I have a 2002 Cadillac Deville North Star
I have a 2002 Cadillac Deville North Star V-8 Sereal # XXXXX Y 145,000 miles last week i had the front bank spark plugs coil pack with new boots replaced the car ran great again i had # XXXXX cylinder… read more
Ron Z.
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Cadillac Deville: 2005 Cadillac Deville intermittently goes
2005 Cadillac Deville intermittently goes dead on all four coils near radiator. You can unplug the coil master harness plug and makes no difference on idle. When left four coils are dead, car will run… read more
Jerry Newton
Jerry Newton
Cadillac Technician
Vocational, Technical or Trade Scho
1,738 satisfied customers
2000 Cadillac deville: engine light came..coil pack boot..cylinder
2000 Cadillac deville started missing all the time and ck engine light came on.... I had a po1360 and a po302 code I replaced the coil pack boot and plug I on number 2 cylinder. Now just po302 showes … read more
David H
David H
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2005 cadillac deville: stop sign..only stay running..shifting..neutral
2005 cadillac deville starts jerking and bucking when hot. I have replaced both coil packs. When at a stop sign or red light, it will only stay running by shifting into neutral.… read more
Neal
Neal
Auto repair pro, 30 years experience
Associate Degree
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DTC P0304 Misfire Detected last code..coil pack..cylinder..disable
DTC P0304 Misfire Detected last code after computer cleared and checked. I have been told it is simply plugs and wires to the a coil pack for the back p-art of cylinder 4 and i have been told a cylind… read more
David H
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2002 Cadillac Deville: PCM..cyl..my check engine light coming..freeway
I have a 2002 Cadillac Deville DTS. In the last year or so, I have replaced the PCM, Idle Control Valve, last week all new platinum plugs. I still have a miss in cyl 5 according the code by my mechani… read more
Dan
Dan
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Vocational, Technical or Trade Scho
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1999 cadillac catera: hey..a miss fire on a cylinder..coil pack
hey there i got a 1999 cadillac catera with a miss all the time it has a code showing a miss fire on a cylinder and when i pulled the plug wire off the plug on the front on right side there was alot o… read more
Dave Nova
Dave Nova
Cadillac Technician
Associate Degree
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HAVE A 2003 CADILLAC DEVILLE, P0300 CODE IS UP. I REPLACED
HAVE A 2003 CADILLAC DEVILLE, P0300 CODE IS UP. I REPLACED PLUGS AND WIRES FRONT AND BACK AND IT IS STILL MISFIREING, I HAVE A SNAP-ON SCANNER HOOKED UP TO IT TO SEE WHAT CYLINDERS ARE MISFIRING, 2 3 … read more
Dave Nova
Dave Nova
Cadillac Technician
Associate Degree
1,522 satisfied customers
2001 Cadillac Deville: give it gas constantly after it cranks up
Why do my 2001 Cadillac Deville cut off if i dont give it gas constantly after it cranks up?… read more
Derek B
Derek B
Vocational, Technical or Trade Scho
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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

Cadillac Technician

1,522 satisfied customers

ASE Master Certification. GM World Class Certification

Gm Tech (Cam)

Gm Tech (Cam)

Cadillac Mechanic

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)

Cadillac Technician

811 satisfied customers

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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