Questions & Answers for: Cadillac DeVille expansion tank

...replace. what else could cause this problem? weak rad cap, or in this case a expansion tank cap. all else sounds normal. Or it has a head gasket leak. Need to pressure test the cap and cooling

tank (or expansion tank). It's there for two reasons. 1...to allow for expansion of the coolant. 2...To purge air out of the system (the cooling system is self purging on these engines). In your car,I

...expansion tank is holding pressure, it may need replacing. Check for coolant flow at the Purge line,this is a common problem on the Northstar. There is a small diameter hose coming from near the top ...

...EXPANSION TANK. THEN ITS AN AIR LOCK, LOOK FOR THE HIGHEST PIPE AND SEE IF THERE IS A BLEED VALVE, IF NOT TAKE BOTH PIPES OFF THE MATRIX FEEDS AND FLUSH OUT TO SEE IF IT IS BLOCKED, AND RECONNECT ...

...expansion tank (radiator overflow). Right front fender. It's there for when the car heats up. As the engine heats up and the coolant expands it racks into the reservoir/overflow/expansion tank. When ...

...It is likely the pressure cap on the surge tank (expansion/overflow coolant tank). It is probably worn and no longer able to hold the pressure. The cap is an inexpensive replacement so do this

...running from radiator to the engine. the car is a 1997 sadandeville you might be losing coolant from the expansion tank, which could be cracked, damaged, or could have a bad cap/hose. hope this

...EXPANSION TANK UNTIL COOLANT LEVEL STOP DROPPING IN THE EXPANSION.WHEN YOU POUR COOLANT IN EXPANSION TANK AIR BLEED OFF THROUGH THE SMALL COOLANT LINES GOING TO EXPANSION TANK.WITH PRESSURE CAP OFF ...

...miles,next day did a pretrip checked oil, tires,tranny fluid,etc. expansion tank no fluid,so i added fluid,after 60 miles, started leaking from drain plug. WHICH DRAIN PLUG. RADIATOR OR EXPANSION ...

...expansion tank in a 2000 Cadillac Deville 4.6 engine for heavy machinery cars etc. luckily there are many websites that can help you repair for eg site like reliable-store is very active in this.. ...