1984 4 Speed Manual Volvo 245 Wagon 2.3 Ltr Over Heating? My car keeps over heating , Mainly when I go fast or uphill . Let me start with: Replaced The water pump Replaced The water pump gasket Replaced Radiator cap Replaced Upper and lower radiator hoses Replaced Head gasket Replaced Valve cover gasket Replaced Exhaust gaskets Replaced Thermostat ((Flushed radiator with something from oreillys not sure if it worked!)) (Replacement of the head gasket and radiator hoses due to to much pressure blew head gasket and put hole in hoses too bulgy)

SOURCE: My 1998 subaru forester keeps

Subarus tend to block their radiators. Often there is only 10% or less flow. The radiator needs to be taken out and have a radiator shop strip and rod out the core tubes or fit a new or recored radiator.

Shaun Eddy

• 147 Answers
• Posted on May 07, 2011

SOURCE: 1993 lexus es300 over heating,

First of all, if your head is cracked or a gasket is blown, the car will run very poorly. But you can check for this by changing your oil and looking for any signs of anti-freeze in the old oil. You caould also rent a compression tester from your parts storeand use this to test for proper compression in each cylinder. Accomplish this by taking out your spark plugs one at a time, screwing the tester into the hole, and turning the engine over to get a reading. If one cylinder reads substantially lower than the others, you have a bad head gasket or a cracked head. If you go this route, be sure to disconnect your coil or all of the plug wires to prevent the car from actually starting. If this is not the case, another possibility would be a leaking freeze plug. These are steel disc-like plugs placed in the head and block to prevent them from cracking in the event your coolant freezes in the car. Since they are made of steel and are usually fairly thin, they tend to corrode from the inside and rupture under pressure. Take a very close look around where the leak seems to be coming from, preferably with the car running and up to temperature so that the leaks will be easier to detect. You might want to pick up an inspection mirror from the parts store to faciliutate your hunt. These can be had for around $5 and are invaluable when trying to find leaks or lost parts. Hope you find what you are looking for and the problem is not too severe.

Marvin

• 85242 Answers
• Posted on Feb 21, 2012

SOURCE: low oil pressure after heads replaced

Was the oil changed? Has the low pressure been verified with a mechanical test gauge at the oil pressure sending unit pressure port? Do that 1st before assuming the pressure is low.