But still would like to know if this is something we can do ourselves? I used them years ago when i added a tran-cooler to my 72 mustang and it held without a problem. Volvo fan won't turn off air. When you replace coolant, loosen the thermostat housing when refilling and bleed air from the system until the coolant appears at the thermostat, just to make sure you have no air bubbles. If this strap breaks, the thermostat jams shut, causing an engine overheat.
Pull the plug and replace it. In most of the incidents, drivers did not notice the loss because the coolant was pumped or blown under the car. Hose Quality Recommendations. Replacement Procedures: [Tips from Chad M, Cameron Price, Editor]. Do not use sealer or adhesive while installing, but you need to lube it with a waterbased lubricant such as soap or rubber lube to install. Less common leaks: - Head Gasket. Volvo 740 applications: (from hardware store). Any secrets for hooking the hard water line to the pump? Inquiry] I've had my 1989 740 for a year and just yesterday at the muffler shop, while the car was up on the lift, I peeked in the front end, and lo and behold there, in all its glory was an electric fan in front of the A/C radiator. Tip from John Sargent:] I deleted a fuse from the wiring. Fan Stayed On After Engine Off. The fan control module I found on eBay, but you can shop around. Make sure the sealing area of the head where the top seal goes is nice and clean.
If this does not indicate the correct position, shine a small flashlight through each hole until you find it, then trace the circuit up the back of the instrument cluster to the connector and mark it lightly. Any electrical device with a huge current draw, like a starter motor or radiator cooling fan, will chew up a cooling system far faster than a trickle of voltage from a poorly grounded underhood relay or other low-amperage device. If it were my car and I was worried about disappearing antifreeze, I'd carefully crack the oil drain plug, let the first few tablespoons drip into a bowl, and examine it carefully for antifreeze. The illustration at left shows the typical failure mode for thermostats, with the rubber seal split at "1" and the piston brace broken at "2". If necessary, snug hose clamps. Auxiliary Electric Fan. You likely will need to wiggle the hose to "walk" it along the port. I also drained the block via the block plug screw. And throw away the old thermostat -- treat the car to a new one and its gasket, after all this effort, it deserves it. Another "invisible" (but problematic) leak might be the heater core. These all come with a hole for the temp sensor. Volvo fan won't turn off sound. A few weeks back, I had to drive the car home in a torrential downpour, so if water was going to get anywhere it shouldn't have, that was the time! Definitely hold on to the info.
You will always have a little drip out of there that will contaminate the RTV (Permatex) It will leak and make your belts squeal. They also hold the pulley. Volvo fan won't turn off windows. This operation can be compaired to an ovens self cleaning feature. Chuck Jeckell] How do I remove oil that has seeped into the cooling system after my headgasket failed? Surely something wasn't right as my car sounded like an airplane on take off. The block porosity issue was limited to about the first 10, 000 units off the line in model year 1992, only!
Editor] It may be tough to insert the bolts in the holes: the gasket may be interfering or you may not be levering correctly. 13mm wrench will loosen, continue to turn counterclockwise and the coolant will flow out. Editor] These tanks will embrittle over. See the discussion on Coolant Recommendations. Using a turkey baster or a siphon, empty the coolant reservoir. Let it sit for awhile, then spray off with a high pressure garden hose (you can find a high-pressure hose tip at a hardware or garden place). D) Electrical Supplies, all from Radio Shack (one each unless noted): - Insulated Wire: 20 gauge stranded approx 25 feet p/n 278-1225. The paper gasket usually sticks to the block pretty hard. Electrolysis Failures Due to Faulty Grounds and Electrical Components. In the later Bosch FI systems there is no sensor in the rad (fan control is done by the ECU and the A/C presso-stat switch). Conventional American coolant should provide better protection against solder corrosion, which can result in radiator tube restrictions and leaks. Go to the hardware store and get a piece of clear vinyl hose to fit it, a couple of clamps, and a garden hose end fitting and attach it to the hose. The oil drip ends up right on top of water pump seal causing it to fail. Pulling the connectors off the sensor switches will diagnose a bad sensor switch.
The other identical relay on the shock tower is the Radio Suppression Relay which feeds juice to the ignition system. Volvo 940: Using a razor knife and some pliers, cut down the diameter of two female snap connectors and squeeze them so as to fit very tightly on the Level Guard lead connectors. Like the information I provided in my May column, AERA advises its shops to first use a DMM and measure the voltage potential of the coolant. Neck, and the copper tube attached to the probe lays in the groove. Others have suggested facing a better bracket. If the integrity of all grounds is sound, fresh coolant has been added and you've still got excess voltage, the association then recommends looking for combustion leaks as a major contributor to the problem. Symptoms of a defective fan clutch include: oily streaks on clutch housing; play in the clutch bearing (wobbling); freewheeling (a good fan should not turn more than one to one-and-a-half turns if spun by hand); and binding (frozen). Dave Stevens] The coolant expansion tank caps used are as follows: - grey = 150 kPa (22 psi) superceded by the green cap. On average, the cost for a Volvo S60 Cooling Fan Relay Replacement is $150 with $55 for parts and $95 for labor. Then I removed the clutch fan. Ref DTM 3 in the 700/900 FAQ Engine OBD Diagnostics Procedures.
Levering against the bottom-most portion of the pump and the crankshaft pulley or power steering pump, lever the pump upward. I have the same problem with my Golf MKIII, my radiator fan won't switch off even after the engine is off, i have changed fan switch 3times, even replaced a new thermostat but the problem help. Install the flat neoprene washer on the switch. Volvo Type C blue only? When I say "lubricate" I do NOT really mean lubricate. It makes tightening / loosening worlds easier. I've had to do it to a couple of cars over the years, works well.