How to Replace an Exhaust Heat Shield on the Exhaust Manifold on 2003 GMC Envoy?

The first step to install the Exhaust Manifold heat shield demands removal of the air cleaner resonator outlet duct followed by the transmission filler tube stud nut removal from the a.i.r. Adapter. The filler then needs to be relocated out of the way. The next step involves taking off both the oil level indicator tube and the Oxygen Sensor from the Exhaust Manifold. The following step involves removing 4 manifold heat shield nuts before you remove the heat shield. The Exhaust Manifold heat shield needs to be installed with its 4 nuts at 10 nm (89 inch lbs.). The installation process begins with attaching the transmission filler tube to the stud by using its nut while the transmission filler tube bracket nut requires tightening up to 10 nm (89 inch lbs.). Reinstall the air cleaner resonator outlet duct as the last step.

OEM 2003 GMC Envoy Exhaust Heat Shield

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3 Exhaust Heat Shields found

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2003 GMC Envoy Rear Shield
Part Number: 15821715
Product Specifications
- Other Name: Shield, Exhaust Tail Pipe
- Replaces: 15264495
- Item Weight: 2.50 Pounds
- Item Dimensions: 50.0 x 4.3 x 13.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 15821715
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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Fits the following 2003 GMC Envoy Submodels:
- Denali, SLE, SLT | 6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS
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2003 GMC Envoy Heat Shield
Part Number: 12587963
Product Specifications
- Other Name: Shield-Exhaust Manifold Heat; Exhaust Heat Shield; Shield, Exhaust Manifold
- Item Weight: 2.10 Pounds
- Item Dimensions: 22.5 x 11.8 x 3.8 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12587963
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2003 GMC Envoy Submodels:
- SLE, SLT | 6 Cyl 4.2 L GAS
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2003 GMC Envoy Front Shield
Part Number: 15918791
$9.88 MSRP: $15.49
You Save: $5.61 (37%)
Product Specifications
- Other Name: Shield, Catalytic Converter; Exhaust Heat Shield; Shield, Transmission Mounting Support; Shield, Transmission Support
- Replaces: 15205182
- Item Weight: 0.80 Pounds
- Item Dimensions: 14.8 x 3.3 x 1.9 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 15918791
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2003 GMC Envoy Submodels:
- SLE, SLT | 6 Cyl 4.2 L GAS

2003 GMC Envoy Exhaust Heat Shield

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2003 GMC Envoy Parts Questions & Experts Answers

Q: How to Replace an Exhaust Heat Shield on the Exhaust Manifold on 2003 GMC Envoy?
A: The first step to install the Exhaust Manifold heat shield demands removal of the air cleaner resonator outlet duct followed by the transmission filler tube stud nut removal from the a.i.r. Adapter. The filler then needs to be relocated out of the way. The next step involves taking off both the oil level indicator tube and the Oxygen Sensor from the Exhaust Manifold. The following step involves removing 4 manifold heat shield nuts before you remove the heat shield. The Exhaust Manifold heat shield needs to be installed with its 4 nuts at 10 nm (89 inch lbs.). The installation process begins with attaching the transmission filler tube to the stud by using its nut while the transmission filler tube bracket nut requires tightening up to 10 nm (89 inch lbs.). Reinstall the air cleaner resonator outlet duct as the last step.