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Nno spark, wont start, no corrosion. New fuel pump, new
New fuel pump, new battery, new igniton coil module, new cap and rotor new cam shaft sensor, new fuel pump … read more
Tim\u0027s Auto Repair
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1990 Cadillac Sedan Deville 4.5 JA: Thanks. Can you give
Recently started running rough, has a mis while idle and drive,. replaced the rotor (melted at tip, replaces cap (seemed ok, and plug wires, but didn't change performance! … read more
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It started stalling out going down the ghway, had it checked
It started stalling out going down the highway, had it checked at auto zone and it said the number 6 cylinder was missing, I changed it and still no change. Then I put a new fuel filter and still it d… read more
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I have a 91 cadillac seville 95,000 miles. 4.9. I got it
I have a 91 cadillac seville 95,000 miles. 4.9. I got it this way. It wont idle and barely starts runs ruff i have tested all injectors found one bad and i replaced it compresion is all above 150 lbs.… read more
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Cadillac Deville: My 2003 Cadillac Deville, northstar engine,
My 2003 Cadillac Deville, northstar engine, has a miss in cylinder #5 at an idle only. I had all new AC Delco spark plugs installed. Problem still exists. Could this be an injector problem?… read more
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1996 Cadillac Seville: control module..coil packs checked..new plugs
Number 3 and number 8 coil on 1996 Cadillac Seville not firing ask this question before on your site, I had control module that is under the coil packs checked at two different part stores, they both … read more
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Cylinder..firing..spark plugs, distributor cap and rotor
After running compression check on engine (150 lb. compression), number 6 cylinder is firing, but not hitting. Replaced spark plug wires, spark plugs, distributor cap and rotor. What would be the prob… read more
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99 cadillac seville: Idles rough when started..stays..gas it stutters
99 cadillac seville-Idles rough when started and stays that way. on giving it the gas it stutters and feels like it is missing out.… read more
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1990 cadillac: back fires with the lights or turn signals..alternator
I have a 1990 cadillac sedan deville that mis fires and back fires with the lights or turn signals on. I have checked the grounds and also the alternator. all are fine. the alternator puts out 14.7 vo… read more
John
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1991 cadillac: That has a miss..changed plugs wire cap rotor and coil
I have a 1991 cadillac 4.9 That has a miss in the motor no service lights on changed plugs wire cap rotor and coil what caould be causing this… read more
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1992 Cadillac Seville: new plugs..rotor, oil change..rough idle
1992 Cadillac Seville, 131k miles has been rough idling and tachometer varies at idle just in for "tune up" new plugs, dist cap, rotor, oil change but no change in rough idle; what to do next? Thanks… read more
David H
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map,water temp sensors..fuel injector..fuel filter..mpg..accelerating
I have 1990 coupediville, I have replaced the IAT,map,water temp sensors. also #3and#5 fuel injector #5 spark plug and wire, fuel filter and fuel line. IT still skips at idle and at road speed, lake o… read more
Mike S.
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sedan..blows..diagnostic..wires, rotor, distributor cap, map sensor
Year : 1993 Make : Cadillac Model : sedan deville Engine : 4.9 My car appears to run fantastic for a couple hundred miles then it shows some hesitation, loses power, misses, backfires and blows apart … read more
John
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1990 Cadillac DeVille: spark plugs,wires..rotor..ecm..distributor
I have a 1990 Cadillac DeVille that misses under medium load. I have replace spark plugs,wires,cap and rotor,ECM,distributor, intake manifold gaskets and #5 fuel injector. All with no avail.Problem se… read more
Jerry Newton
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1992 Cadillac sts: 4.9 replaced coil pack still no spark..crank sensor
No spark 1992 Cadillac sts 4.9 replaced coil pack still no spark can't even find the crank sensor. could it be rotor under coil pack… read more
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1991 Cadillac: coupe..deville..4.9l..4# not firing, no spark
hello i have a 1991 Cadillac coupe deville biarritz 4.9l engine. im having problems with 4# XXXXX firing, no spark. but all other plugs are firing. what is my problem and how do i correct it please. t… read more
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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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