How to inspect a spark plug for issues such as bridged gaps, fouling, and overheating on 2005 Ford F-150?

Checks for gaps in the spark plug, and accumulation of deposits due to oil or carbon degradation. Clean if needed. Oil fouling (wet black deposits) and carbon fouling (dry black deposits) Check. Check on uniform burning (tan deposits) and indications of overheating (light gray spots). Replace if necessary.

OEM 2005 Ford F-150 Spark Plug

Ignition Spark Plug

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3 Spark Plugs found

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2005 Ford F-150 Spark Plug Part Number: PZK-1F
$10.25 MSRP: $20.73
You Save: $10.48 (51%)
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Product Specifications
- Replaced by: PZK-1F-X
- Item Weight: 0.30 Pounds
- Item Dimensions: 3.9 x 1.1 x 1.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: PZK-1F
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
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Fits the following 2005 Ford F-150 Submodels:
- FX2, FX4, Harley-Davidson Edition, King Ranch, Lariat, Limited, THE 60TH ANNIVERSARY EDITION, XL, XLT | 8 Cyl 5.4 L FLEX, 8 Cyl 5.4 L GAS
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2005 Ford F-150 Spark Plug Part Number: AGSF-32P-MX
$6.04 MSRP: $9.35
You Save: $3.31 (36%)
Ships in 1-3 Business Days
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Product Specifications
- Replaces: AGSF-32P-M, AGSF-32P-MF4, SP-493
- Condition: New
- Fitment Type: Direct Replacement
- SKU: AGSF-32P-MX
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following 2005 Ford F-150 Submodels:
- FX2, STX, THE 60TH ANNIVERSARY EDITION, XL, XLT | 8 Cyl 4.6 L GAS
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2005 Ford F-150 Spark Plug Part Number: AGSF-34F-MX
$5.30 MSRP: $8.20
You Save: $2.90 (36%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaces: AGSF-34F-M, SP-504
- Condition: New
- Fitment Type: Direct Replacement
- SKU: AGSF-34F-MX
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following 2005 Ford F-150 Submodels:
- Base, STX, XL, XLT | 6 Cyl 4.2 L GAS

2005 Ford F-150 Spark Plug

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2005 Ford F-150 Spark Plug Parts Q&A

Q: How to inspect a spark plug for issues such as bridged gaps, fouling, and overheating on 2005 Ford F-150?
A: Checks for gaps in the spark plug, and accumulation of deposits due to oil or carbon degradation. Clean if needed. Oil fouling (wet black deposits) and carbon fouling (dry black deposits) Check. Check on uniform burning (tan deposits) and indications of overheating (light gray spots). Replace if necessary.