Spark Plug Replacement Estimate for Cadillac XLR

Cadillac XLR Spark Plug Replacement costs $114 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$112 to $128
Labor: $105 -$120
Parts: $7 -$8
Average Dealer price
$154 to 156
Average Shop price
$134 to 135
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CarServiceYourMechanic PriceShop/Dealer Price
2008 Cadillac XLRV8-4.6LService typeSpark Plug ReplacementYourMechanic Price$114.06Shop/Dealer Price$154.44 - $189.82
2007 Cadillac XLRV8-4.6LService typeSpark Plug ReplacementYourMechanic Price$113.89Shop/Dealer Price$154.41 - $189.80
2008 Cadillac XLRV8-4.4L TurboService typeSpark Plug ReplacementYourMechanic Price$113.89Shop/Dealer Price$154.29 - $189.59
2009 Cadillac XLRV8-4.4L TurboService typeSpark Plug ReplacementYourMechanic Price$113.89Shop/Dealer Price$154.35 - $189.69
2006 Cadillac XLRV8-4.4L TurboService typeSpark Plug ReplacementYourMechanic Price$114.06Shop/Dealer Price$154.47 - $189.87
2006 Cadillac XLRV8-4.6LService typeSpark Plug ReplacementYourMechanic Price$113.02Shop/Dealer Price$153.13 - $187.72
2009 Cadillac XLRV8-4.6LService typeSpark Plug ReplacementYourMechanic Price$114.10Shop/Dealer Price$154.72 - $190.30
2004 Cadillac XLRV8-4.6LService typeSpark Plug ReplacementYourMechanic Price$112.87Shop/Dealer Price$153.13 - $187.75
Show example Cadillac XLR Spark Plug Replacement prices

Parts required for a Cadillac XLR Spark Plug Replacement

$7 to $8

Meet some of our expert Cadillac mechanics

Real customer reviews from Cadillac owners like you.

283 reviews
Patrick
27 years of experience
My 2007 Cadillac SRX AWD V6 was pinging on acceleration, had lost engine pep and the gas mileage had dropped to about 10 miles per gallon. The car has 97,000 miles on it and Cadillac recommends changing spark plugs at 100,000 miles. I called Cadillac and got a quote of $ 550. Wow! I called your mechanic and got a quote for $ 299.00. I asked for Patrick, who I had used before. Patrick came and and did a pretty involved job disassembling the top of the engine to reach the spark plugs and replaced them in about 3 hours. Patrick noted that the old plugs were very worn and that the spark plug tubes and the spark tubes had oil at the bottom of them. He told me that might be because the seal at the bottom of the spark plug tubes had failed, allowing oil from inside the valve cover to get into the spark plug tubes. I did some research and found that these seals failing is a relatively common issue in SRX's as well as other vehicles. The seals are not expensive but it appears that to replace them, the top of the engine would need to be disassembled again plus the valve cover on each side would also have to be removed, Then the seals could be installed and everything reassembled. That's most likely an expensive job. I drove the car after the new plugs were installed. Quite a difference. The car has its pep back, the mileage is starting to rise back to normal levels, and although I still get a slight ping at times, at this point it is about 90 % less than I was getting. My question is if I do nothing about the spark plug tube seals, will my issues return? Notes about this indicate that at some point the spark plugs are fouled enough to cause engine error faults and misfires if the spark plug tube seals are not replaced. Now I have to decide if I want to spend the money to have the new seals installed or take my chances and see what happens. If you read this Patrick, I would appreciate your best guess. Patrick is a very good mechanic. My dad ran an auto parts store, a garage and a machine shop for 25 years so I do know a few things about cars and know a good mechanic when I see one. If you need an excellent mechanic who is also honest, look no further than Patrick.
2007 CADILLAC SRX - SPARK PLUG REPLACEMENT
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251 reviews
Jeffrey
22 years of experience
Jeffrey was great! Arrived on time and did a great job. He knows his stuff when it came to my 2000 Cadillac Eldorado. Very pleased with his work and ethics. Will definitely be scheduling him for his recommended services very soon
2000 CADILLAC ELDORADO - FREE SUMMER INSPECTION
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246 reviews
Godwin
19 years of experience
Did a great job and finished the job right, I will definitely be using again if I can get the groupon deal for 40.
2011 CADILLAC ESCALADE EXT - OIL CHANGE
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110 reviews
Joel
16 years of experience
Timely and professional
2005 CADILLAC SRX - CAR STARTER REPAIR
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All about Spark Plug Replacement

The spark plugs are an important part of the ignition system. When you turn the ignition key (car's key) on, it causes the ignition coil to generate the spark which ignites the air-fuel mixture in the engine cylinders to start the engine. The number of spark plugs in the car is the same as the number of cylinders, although some vehicle manufacturers will use two spark plugs per cylinder. Over time, the spark plugs wear out and require replacement. When the spark plugs wear out, it is harder for it the air-fuel mixture to ignite, resulting in engine misfires. If one of the spark plugs has failed, the car will still start and run, but it will run poorly. On some vehicles, spark plug replacement may be labor intensive and involve removal of the intake plenum.

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