How to replace the throttle body assembly on Chevrolet Express 1500?

To replace the Throttle Body assembly, you pull out the air cleaner assembly, the accelerate control cable and the cruise control cable from Throttle Body, and the vacuum hose. Next, disjoin throttle position (TP) sensor and idle air control (IAC) valve harness connectors along with the coolant hoses from the Throttle Body and a vapor vent pipe. Unscrew the Throttle Body attaching nuts, and then remove the Throttle Body with the gasket and dispose of the old gasket. Clean the gasket sealing surfaces without ruining the aluminum surfaces. Do not hot soak the Throttle Body in a cold immersion type cleaner because the throttle plate has a factory applied sealing compound which may be wrecked by strong solvents or brushing; however, use a spray type cleaner like gm x-66a or gm p/n 1052626 and a shop towel for heavy deposits. Make sure the tp sensor and iac valve do not touch on any solvent or cleaner. The assembly part would require the placement of the Throttle Body with a brand-new gasket with the attachment nuts done by tightening them to 10 n.m (89 lb in). Reconnect the coolant hoses, accelerator control cable /cruise control cable / tp sensor, iac valve electrical connectors and vacuum hose, reinstallation of the air cleaner assembly. With the engine turned off, ensure free movement of the accelerator pedal and then press and release it. Turning the ignition on for 10 sec, off for 5 sec, and then running the engine to inspect that it is this idles at the correct speed is how to reset the iac valve.

OEM Chevrolet Express 1500 Throttle Body

Fuel Injection Throttle Body

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7 Throttle Bodies found

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Chevrolet Express 1500 Fuel Meter Part Number: 17113273
$74.17 MSRP: $231.39
You Save: $157.22 (68%)
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Product Specifications
- Other Name: Body Kit, Throttle Body/Carburetor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2004 Chevrolet Express 1500 | Base, LS | 6 Cyl 4.3 L GAS
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Chevrolet Express 1500 Throttle Body Part Number: 12679524
$269.78 MSRP: $547.96
You Save: $278.18 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Body, Fuel Injection Air Meter; Electronic Throttle Body Assembly; Fuel Injection Throttle Body
- Replaces: 12580760, 12572658
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008 Chevrolet Express 1500 | Base
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Chevrolet Express 1500 Throttle Body Part Number: 12629992
$275.89 MSRP: $560.36
You Save: $284.47 (51%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Body, Fuel Injection Air Meter; Throttle Body Assembly; Electronic Throttle Body.
- Replaces: 12601387
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2014 Chevrolet Express 1500 | Base
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Chevrolet Express 1500 Throttle Body Part Number: 12615503
$176.11 MSRP: $357.70
You Save: $181.59 (51%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Body, Fuel Injection Air Meter; Electronic Throttle Body Assembly; Fuel Injection Throttle Body.
- Replaces: 12618735, 12595829
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2014 Chevrolet Express 1500 | Base | 6 Cyl 4.3 L GAS
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Chevrolet Express 1500 Throttle Body Part Number: 19420713
$196.41 MSRP: $398.92
You Save: $202.51 (51%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Body, Fuel Injection Air Meter
- Replaces: 12679525, 12570800
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007 Chevrolet Express 1500 | Base
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Chevrolet Express 1500 Throttle Body Part Number: 12596576
Product Specifications
- Other Name: Body, Fuel Injection Air Meter
- Replaces: 89017227, 12580793
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2006 Chevrolet Express 1500 | Base, LS, LT | 8 Cyl 5.3 L GAS
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Chevrolet Express 1500 Throttle Body Part Number: 12595276
Product Specifications
- Other Name: Body, Fuel Injection Air Meter
- Replaces: 17113650, 88894295
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2007 Chevrolet Express 1500 | Base, LS, LT | 6 Cyl 4.3 L GAS

Chevrolet Express 1500 Throttle Body

Want to cut long-term maintenance and repair costs? Choose OEM Throttle Body. Those parts deliver top durability you can trust. On our site, you'll find a huge catalog of genuine Chevrolet Express 1500 parts. Prices are unbeatable, so you can keep more in your pocket. Every OEM Chevrolet Express 1500 Throttle Body includes a manufacturer's warranty. You can also get an easy return policy that keeps buying risk free. Fast delivery, get your car on the road quickly. It's simple to search, compare, and order. Stop guessing about quality or fit. Order today and save with parts that last.

Chevrolet Express 1500 Throttle Body Parts and Q&A

Throttle Body
12596576
Q: How to replace the throttle body assembly on Chevrolet Express 1500?
A:
To replace the Throttle Body assembly, you pull out the air cleaner assembly, the accelerate control cable and the cruise control cable from Throttle Body, and the vacuum hose. Next, disjoin throttle position (TP) sensor and idle air control (IAC) valve harness connectors along with the coolant hoses from the Throttle Body and a vapor vent pipe. Unscrew the Throttle Body attaching nuts, and then remove the Throttle Body with the gasket and dispose of the old gasket. Clean the gasket sealing surfaces without ruining the aluminum surfaces. Do not hot soak the Throttle Body in a cold immersion type cleaner because the throttle plate has a factory applied sealing compound which may be wrecked by strong solvents or brushing; however, use a spray type cleaner like gm x-66a or gm p/n 1052626 and a shop towel for heavy deposits. Make sure the tp sensor and iac valve do not touch on any solvent or cleaner. The assembly part would require the placement of the Throttle Body with a brand-new gasket with the attachment nuts done by tightening them to 10 n.m (89 lb in). Reconnect the coolant hoses, accelerator control cable /cruise control cable / tp sensor, iac valve electrical connectors and vacuum hose, reinstallation of the air cleaner assembly. With the engine turned off, ensure free movement of the accelerator pedal and then press and release it. Turning the ignition on for 10 sec, off for 5 sec, and then running the engine to inspect that it is this idles at the correct speed is how to reset the iac valve.