Top radiator hose clamp was over-tightened, cracking plastic neck outlet. Dad broke the upper hose flange off on his 90, 740 last week. While this is crimped in place, you should also add a small amount of solder to secure it. See below for a homemade tester. My nine-year-old 945T developed a very small crack in the top of the reservoir... it bubbled a bit when the engine was hot.
- Volvo fan won't turn off the trail
- Volvo fan won't turn off by itself
- Volvo fan won't turn off remote
- Volvo fan won't turn off camera
Volvo Fan Won't Turn Off The Trail
If the antifreeze has mixed with the oil in a running engine, it'll form a "dispersion" and the oil will take on a grayish, cloudy characteristic. Homemade Cooling System Pressure Tester. Changing Coolant on 960 B6300 Engines. To install, first seat the gasket in the hole, them push in the sensor. Thank you both for the help. How to Stop a Cooling Fan That Randomly Turns On/Off (Audi A4. Tap on it with a screwdriver handle, and see if the fan shuts off. Radiators seems to last longer also. Editor:] I've experienced a clogged air vent. First, look long and hard for the leak: - Look for the obvious leaks first. Web site is (2) Less expensive is the version from McMaster-Carr (part number 50195K74 for $19. 00 bicycle pump (with built in pressure gauge) to the cap and presto.
From Bob Savasta, Motor Magazine, Nov 2001] If you have repeated heater core or aluminum radiator failures, consider one possible source to be coolant breakdown and electrolysis due to combustion gases from head gasket leaks. In the 1995 Volvo 940, the lamp is installed at position 8 from the passenger side of the panel. Loosen the thermostat housing nuts to relieve trapped air when refilling. Rubber hoses (which are actually made of neoprene and other synthetic materials) deteriorate with age and exposure to heat. 940 1994+: flat "C" connector uses flat Volvo p/n 9148152. Generally, you can simply pull the hoses off the other two ports - that on the side of the head (under the intake manifold) and that on the pipe, which runs behind the exhaust manifold and around the back of the head. Volvo fan won't turn off camera. Note: Dick Riess contributed a plan for an easier-to-install warning light using a dash switch cutout instead of the panel. While keeping leverage pressure on the pump, tighten the rest of the bolts in a star pattern to 8-10 ft-lb (11-15 Nm. Check it out carefully. Be careful around the throttle and kickdown cables so you do not crack the end fittings. Once we pulled it, it went off, but when we put it back in the fan started up again. Inspect with a mechanic's inspection mirror. 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. I'm sure others out there would object to this practice -- but it has worked well for me since my first Volvo, a 1972 142E -- and I'm on my 15th, or so, Volvo.
Volvo Fan Won't Turn Off By Itself
J) Cut off one of the smaller rubber wiring conduits in the lower firewall connector just behind the strut tower. Oil in coolant reservoir. A failed water valve is probably the #1 cause of a secondary cooling system failure within 2 weeks after the first has been fixed (i. e. radiator, hose, water pump, etc). If you found the fan module under the hood, and the fan shut off when you tapped on the module, you will need a new module. Volvo fan won't turn off the trail. Hang new gasket on two remaining studs in engine block. Use a thin tool (such as a putty knife) to straighten the bent fins on both radiators. Remove one bolt at the top; it sits in a molded rubber fitting. All Volkswagens do that it is intentional.
OEM seals are imprinted "one use only". The easiest and proper way to install it is to use a press, vise or clamp. Have you verified system isn't overcharged or have a restriction and head pressure is actually high? 2mm in inner diameter, about 87. Pull off the upper radiator hose from the thermostat housing.
Volvo Fan Won't Turn Off Remote
Given enough time, the damage will cause a leak to develop. These all come with a hole for the temp sensor. Pulling the connectors off the sensor switches will diagnose a bad sensor switch. BTW, I can do a pump on a hot engine in 20 minutes. I pulled the key out and walked away a bit confused, trying to convince myself that perhaps what happened was normal when it was hot. H) Volvo 740: Strip, crimp, and solder one end of this wire (using a crimp connector) to the other sensor switch wire. I know the eBay part is not a VW factory part, but neither is the one from an auto parts store. One telltale sign of electrolysis and/or electro-chemical corrosion is discoloration of the affected area. Every garage should have one. Volvo fan won't turn off by itself. On some models, like mine, there is a metal clip which bridges across the ECU itself.
V) Test the installation. The rubber insert/adapters can still be found (even from Volvo) as they are used with the temp sensor, but the plugs to seal them off may be difficult to find or not in stock. Pump Removal Notes: [Inquiry] I removed the timing cover and the six visible nuts/bolts, and tried to pull the thing off. The pump is aluminum, and you risk a seal failure if you tighten one bolt fully before all the others are nearly tight. Remove the tank and shake it; if you hear the level float rattling, then it has a float. The sensor works beautifully. Also, you change your coolant right? Instead, just measure the coolant itself. Evidence of electrolysis includes unexplained and/or the recurring pinhole leaks in a radiator or heater. Block Drain Plugs Location. If this happens, the internals and contacts of the relay can become corroded and cause the fan to act erratically. Clean off the grounding plane connector, install the blade connector and the wire onto the ground, insulate it with some "Oxgard" conductive grease, then feed the wire up the lamp harness back to the coolant tank. Replace them according to an intelligent schedule.
Volvo Fan Won't Turn Off Camera
Response:] You will never be able to get all the coolant out. The other identical relay on the shock tower is the Radio Suppression Relay which feeds juice to the ignition system. The grease in the screw area will make it easier to re-install the clamp. Tip from Pomp] My Volvo's been having all the same overheating symptoms I've been reading about on the board... running into the red and staying there. C) Remove the float and install it so that the switch operates in the "N. O. " The beveling tool has a 90 degree included angle. This will diagnose a bad relay if the fan continues to run, otherwise start isolating relay control wiring problems including bad pressure sensor switches. Remove automatic transmission coolant lines; not much oil will drain out, so use a cloth under them to catch that which does. 940 Variant: Volvo "Level Guard" p/n 3547710) approx $15 from Borton's Volvo,, FCPGroton, or from a junkyard off a wrecked 960 car. If you don't mind used parts has great prices, and provides low priced shipping.
In all these scenarios we're only talking about a bad relay that's stuck open or internally shorted. If you don't keep the system topped off to the "min" mark on the reservoir, it may cause scaling and rust precipitation. The cycle will repeat until stopped. Reinstall your rad hose ( it'll be a perfect fit), replace your lost antifreeze and hit the road.