Question about Honda Accord

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1994 Honda Accord. Heat indicator on dash goes to just under red line when idling at stop. OK when moving. There is a fan coming on right after I turn the car off. I did just have the timing belt and heat pump replaced and radiator flushed, transmission fluid flushed/replaced last week. However, I did notice this happened once in awhile as I got out to unlock the garage but only infrequently. Now it was all the way home last night, then all the way to work this morning. About ready to start praying at stoplights. My bad because I forgot to mention it to my mechanics. I just put a fair amount of money into the car because I really want to keep it. It's at 275,000 but still going strong. Everything I've done is just normal maintenance at that mileage. ???

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Ok, if the temp is up that high when you stop, but goes back to normal when you start moving, then you have an air pocket in your cooling system. there is no way that the coolant temperature in your cooling system can heat up and cool off that fast. whats happening is an air bubble is settling right where the coolant temperature sensor is. the air is much hotter then the coolant around it, so when the air hits the sensor, it gives you a false reading of the temp. but when you are driving, the water pump spins faster then at idle, so thats probably what is pushing the air pocket away from the sensor when you are moving. I could be wrong about this, but i have had this problem before with my own car. next time it happens, try putting your car in nuetral and revving the motor while you are sitting. if that makes your temperature go back down, then you definitely have an air pocket. a lot of cars have special bleeder screws, similar to the bleeders on brake calipers, to remove air from the system. take the car back to your mechanic and see if they can bleed the cooling system. that will most likely help you out.

Posted on Sep 04, 2009

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Some radiators do not flush well...sometimes the flush will go around obstructions instead of through them and sometimes flushing will loosen debris which can plug cores that were open. It is possible that your radiator is marginal and not transferring heat properly. Temperature generally increases after shut-down for a short time and that will turn on
the fan.That part is normal...the item of concern is running hot at idle, in traffic.
Likely if you don't have any leaks and the head gasket is good, changing the radiator should help.

Posted on Sep 04, 2009

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No heat in my 94 Accord, replaced thermostat. Moved heater conrol gate valve by hand to every position, and still no heat. What is causing the lack of heat? Car is warmed up and idles well.

it would appear that a heater door under the dash is not operating.However, check the route of the heater hose from the engine to the bulkhead which feeds the heater, then check the hose FROM the bulkhead back to the engine.The return line to the engine should be marginally cooler, If it is cold / cool then coolant is not flowing through the heater core. Locate the hose at the highest point of the engine, slacken it, and with the engine warm, bleed the coolant flow. Wear a long sleeved shirt / coveralls, gloves and safety glasses.

Everything ok? Then check for the operation of the heater door under the dash. Engine at idle, move the heater control and listen for the door closing. Also ensure that your air circulation lever is set for the car interior.

If you can't hear the door operating, you will have to do a visual insp under the dash.

You do not mention your skills level, so I would not presume to issue instructions for that task.

Good luck.

Jan 31, 2011 | 1995 Honda Accord

1 Answer

I have a 1994 honda accord lx..heater fan was makin funny noises for a while..then stopped working..started working and stopped again..Is it hard to replace..could it be a fuse..I;m a girl..could I do it...

The heater fan is on the right side floor board under the dash. It is a little tough to do but not extremely hard. If the blower was making noise, it could be something in the heater housing. If it is starting and stopping it is probably the blower motor. When replacing the blower motor you may have to remove the fan from the motor depending on where you buy a new one. The fans (usually made of plastic) break very easy. If you attempt this, be very careful in removing the fan.

Under the dash on the right side you will have to lay on the floor and look up. There may be a lower dash panel to remove. The motor is just below the glovebox. Removed the wire, remove the bolts/screws attaching the blower to the housing. Remove the blower.

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1 Answer

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1997 Honda Accord temp guage goes up and down. It goes up when when idling @ a traffic light. It rises in between the half way mark and the H. When I accelerate it goes below the half between the C. What...

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1 Answer

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1 Answer

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