Intake manifold my brother has replaced the radiator and now he's being told something about the intake manifold. Are the two parts related?

Drain the radiator by using the peck **** valve on the lower part of radiator. The thermostat is located in the intake manifold where the large upper radiator hose attaches to the intake manifold. Remove the two bolts holding the thermostat cover to the intake manifold.

Instructions

1. Removal

Unscrew the bolt that holds the negative connection to the Impala's battery. Set this bolt aside for later use.

Remove the engine cover to access the intake manifold and manifold gasket. Disconnect the throttle body inlet duct from the engine.

Twist off the radiator cap to allow draining of the coolant to flow more smoothly. Place an empty container beneath the radiator's drain plug, and remove this plug. Allow all of the engine coolant to drain into the empty container. Replace the drain plug once you are finished.

Tag all of the electrical wiring and hoses before removing so that reconnection is precise to factory settings. Remove these parts, individually, from the intake manifold.

Loosen the bolts that hold the intake manifold to the Impala's engine block. Lift the intake manifold from the block once all bolts have been completely removed.

Use the flat-head screwdriver to pry the old intake manifold gasket from the engine block. Discard this part once you have removed it.

Clean the engine block thoroughly with the engine degreaser and linen cloth. If necessary, use a gasket scraper to remove excess buildup and grime.

2. Installation

• Coat the top and bottom of the new intake manifold gasket with a chemical sealer so that it bonds to the engine block securely. Position this new manifold gasket so that it lines up perfectly with the cylinder ports of the Impala's engine block.

Place the old intake manifold on top of the newly-installed manifold gasket until it aligns with all of the holes of the cylinder flanges and manifold gasket.

Attach all of the bolts with your hand to the manifold. Once all bolts have been positioned, use a torque wrench and apply 15 foot-pounds of pressure to the bolts to secure the manifold into place.

Reconnect all of the necessary hoses and electrical wiring to the intake. Pour the engine coolant back into the radiator.

Reattach the engine cover on top of the intake manifold and engine block. Start the Impala's engine and check for any leaks around the new intake manifold gasket.

It may be a early signs of the intake manifold gasket. Did you check your radiator and water pump. Also if there is any antifreeze around your engine, then it's a intake manifold gasket. As for the hazard light thing and turn signal, something has to be replaced there.

I'am sort of missing something here

Was the radiator blocked or replaced as a guess ?
The thermostat i understand
The heater core by pass i don't,what does that prove ?

The shop says - intake manifold hose.

A hose causing overheating,explain that one.

The finally question
What is your question? Did the repair shop
get lost and ask you for help?

Its in the mid left side of the intake manifold. It simply plugs in to the manifold with sinthitc red seals as the gasket has a three wire connector and is easy to replace in alomst the center of the manifold mid way in relation to the main air intake on the left side . The olny problem is that costs about 75 dollars depending on where you buy it but ti can be replaced with no tools in under 5 minutes its a three wire connector

I am sure that you could find an intake manifold way cheaper than that at a junkyard that would be good i'm guessing but i'm thinkin prob $75-$100 someone to put it one shouldn't too much

sounds like the head gasket has gone or going ..has the car done over 80000 miles? any water from the exhaust pipe?
not a big problem if you get it fixed soon

most likely you burned the head gasket

just replace the intake gasket not the whole intake manifold

Stevie---You must have some REALLY BAD Auto Parts Stores in your Area. From your Discription there should be no Guess Work!