Why do throttle bodies have coolant lines?
The coolant lines are used to reduce the temperature of the returning exhaust gas back into the intake. Exhaust temps reach in excess of 600 degrees. So every time the EGR opens, close to 600 degree air is being diverted into the intake manifold.
Does coolant flow through the intake manifold?
The intake manifold also helps cool down the cylinders to prevent the engine from overheating. Coolant runs through the manifold to the cylinder heads where the coolant absorbs the heat and reduces engine temperature.
Does water run through intake manifold?
The intake manifold requires a gasket to seal the manifold against the cylinder head. These types of engines have water passages, typically running from the front and rear of the intake manifold that circulates coolant.
What’s the best way to clean a throttle body?
Let the cleaner soak in for a minute or two. Spray throttle body cleaner on a clean shop rag and clean the inside of the throttle body. Start by cleaning the inner housing and wipe the rag along the entire surface. Open the throttle blades with the throttle control.
How to remove coolant flow to the throttle body?
Remove the coolant hose attached to the firewall side of the throttle body (TB). 2. Remove the coolant hose which connects the bottom TB coolant outlet to the coolant hard-pipe between the oil filter and the oil filler spout. 3.
What kind of screwdriver do I need to remove throttle body?
Sometimes throttle bodies are attached with special fasteners called Torx-head screws. If so, you will need Torx bits or Torx screwdrivers to remove these fasteners. More commonly, a flat-blade or Phillips-head screwdriver should do the trick.
Where is the throttle body on a car?
The throttle body is located between the air cleaner and the intake manifold of the engine. Most throttle bodies are made of aluminum. The throttle body is connected to the gas pedal of your vehicle with a linkage or flexible cable, which moves the throttle shaft when the gas pedal is depressed.