How to replace an exhaust manifold in four cylinder engine on Chevrolet Astro?

First, disconnect the cable from the negative battery terminal and on the models with audio system there is an anti-theft feature that should be turned off before disconnecting the battery. Next, unload the engine cover and, at the exhaust manifold, undo the heat stove pipe. Lift the vehicle and then support it with jackstands then remove the oxygen sensor. Label and remove the 4 wires of spark plug, tied up clear of the engine. Remove the nut/bolt that connects the exhaust pipe to the exhaust manifold using a breaker bar/extension bar and apply penetrating oil if there is rust on threads and then drag the exhaust pipe down and use wire and hang it on the frame . Bolt covers and shrouds at the rear, then take off the rear air conditioning compressor bracket before removing the bolts on the exhaust manifold end and the manifold center bolts to isolate manifold from the engine. Remove the exhaust manifold gasket, and check the gasket joining surfaces on the cylinder head and manifold for cleanliness and absence of all existing gasket materials, and carbon deposits on it and also check whether the joining bolt threads of manifold are in good condition. A new exhaust manifold gasket should be applied to the cylinder head and the manifold well seated before the mounting bolts are tightened with fingers just enough to hold the manifold in place. Loosen the bolts gradually in the correct sequence until the reach the torque you want to be at. Join the exhaust pipe back and the air conditioning compressor bracket back and then lower the car. Last of all, put back the remaining pieces in a reverse order of their removal, crank the engine, and look for exhaust loss at the junction between the manifold and cylinder head and between the manifold and the exhaust pipe.

Genuine Chevrolet Astro Exhaust Manifold

Engine Exhaust Manifold

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12 Exhaust Manifolds found

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Chevrolet Astro Engine Exhaust Manifold
Part Number: 12570693
Product Specifications
- Other Name: Manifold, Exhaust ; Manifold, Engine Exhaust Manifold; Exhaust Manifold, Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2005 Chevrolet Astro | VAN ASTRO | 6 Cyl 4.3L
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Chevrolet Astro Exhaust Manifold Welding Assembly
Part Number: 14075672
Product Specifications
- Other Name: Manifold Welding Assembly, Exhaust Rh; Exhaust Manifold, Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1989 Chevrolet Astro | VAN ASTRO | 6 Cyl 4.3L
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Chevrolet Astro Engine Exhaust Manifold
Part Number: 12550122
Product Specifications
- Other Name: Manifold,Exhaust ; Manifold, Engine Exhaust Manifold; Exhaust Manifold, Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2005 Chevrolet Astro | VAN ASTRO | 6 Cyl 4.3L
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Chevrolet Astro Exhaust Manifold
Part Number: 10055524
Product Specifications
- Other Name: Manifold, Exhaust; Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1987-1995 Chevrolet Astro | VAN ASTRO | 6 Cyl 4.3L
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Chevrolet Astro Exhaust Manifold
Part Number: 10093091
Product Specifications
- Other Name: Manifold, Exhaust; Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1986 Chevrolet Astro | VAN ASTRO | 6 Cyl 4.3L
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Chevrolet Astro Exhaust Manifold Assembly
Part Number: 10105866
Product Specifications
- Other Name: Manifold Assembly, Exhaust; Exhaust Manifold, Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1987-1995 Chevrolet Astro | VAN ASTRO | 6 Cyl 4.3L
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Chevrolet Astro Exhaust Manifold Assembly
Part Number: 10105864
Product Specifications
- Other Name: Manifold Assembly, Exhaust; Exhaust Manifold, Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1986 Chevrolet Astro | VAN ASTRO | 6 Cyl 4.3L
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Chevrolet Astro Exhaust Manifold Assembly
Part Number: 10105970
Product Specifications
- Other Name: Manifold Assembly, Exhaust; Exhaust Manifold, Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1990-1995 Chevrolet Astro | VAN ASTRO | 6 Cyl 4.3L
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Chevrolet Astro Engine Exhaust Manifold Assembly
Part Number: 12552325
Product Specifications
- Other Name: Manifold Assembly, Exhaust ; Manifold, Engine Exhaust Manifold; Exhaust Manifold, Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2001 Chevrolet Astro | VAN ASTRO | 6 Cyl 4.3L
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Chevrolet Astro Exhaust Manifold & Preheat Stove Assembly
Part Number: 10044281
Product Specifications
- Other Name: Manifold & Preheat Stove Assembly, Exhaust; Exhaust Manifold, Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1990 Chevrolet Astro | VAN ASTRO | 4 Cyl 2.5L
View related parts
Chevrolet Astro Exhaust Manifold
Part Number: 10105967
Product Specifications
- Other Name: Manifold, Exhaust; Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1990-1995 Chevrolet Astro | VAN ASTRO | 6 Cyl 4.3L
View related parts
Chevrolet Astro Exhaust Manifold
Part Number: 14091540
Product Specifications
- Other Name: Maniffold Welding Assembly, Exhaust Rh; Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1986 Chevrolet Astro | VAN ASTRO | 6 Cyl 4.3L

Chevrolet Astro Exhaust Manifold

The Exhaust Manifold of Chevrolet Astro cars is a vital component that works by channelling hot gasses from the van's engine to the exhaust system to improve on the engine performance and at the same time lessen toxic emissions. Depending on the type of the engine, manifold is installed in various locations and is equipped with several tubes that are equal to the number of cylinders, its main function is to collect exhaust gases. There are two types of exhaust manifolds for Chevrolet Astro, they are cast iron or stainless steel and Chevrolet Astro's headers, which are called parts that can improve the flow resistance. These headers enhance velocities along the exhaust gas chambers hence enhancing the efficiency of the engine. Exhaust manifold designs and materials may greatly affect the performance of the vehicle as well as the health of the car owner because of uneven air-to-fuel ratio and dangerous exhaust emissions. The Chevrolet Astro vehicles' exhaust manifold needs to be maintained foreely and replaced at the right time for efficient working.

Each OEM Chevrolet Astro Exhaust Manifold we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

Chevrolet Astro Exhaust Manifold Parts Questions & Experts Answers

Engine Exhaust Manifold Assembly
12552325
Q: How to replace an exhaust manifold in four cylinder engine on Chevrolet Astro?
A:
First, disconnect the cable from the negative battery terminal and on the models with audio system there is an anti-theft feature that should be turned off before disconnecting the battery. Next, unload the engine cover and, at the exhaust manifold, undo the heat stove pipe. Lift the vehicle and then support it with jackstands then remove the oxygen sensor. Label and remove the 4 wires of spark plug, tied up clear of the engine. Remove the nut/bolt that connects the exhaust pipe to the exhaust manifold using a breaker bar/extension bar and apply penetrating oil if there is rust on threads and then drag the exhaust pipe down and use wire and hang it on the frame . Bolt covers and shrouds at the rear, then take off the rear air conditioning compressor bracket before removing the bolts on the exhaust manifold end and the manifold center bolts to isolate manifold from the engine. Remove the exhaust manifold gasket, and check the gasket joining surfaces on the cylinder head and manifold for cleanliness and absence of all existing gasket materials, and carbon deposits on it and also check whether the joining bolt threads of manifold are in good condition. A new exhaust manifold gasket should be applied to the cylinder head and the manifold well seated before the mounting bolts are tightened with fingers just enough to hold the manifold in place. Loosen the bolts gradually in the correct sequence until the reach the torque you want to be at. Join the exhaust pipe back and the air conditioning compressor bracket back and then lower the car. Last of all, put back the remaining pieces in a reverse order of their removal, crank the engine, and look for exhaust loss at the junction between the manifold and cylinder head and between the manifold and the exhaust pipe.