Hi Jeff:
I;d check the radiator cap. Coolant cannot get from the reservoir to the radiator unless there is vacuum to suck it into the rad when it cools down. If the rad cap gasket or the connecting hose are not functioning it would explain it.
Hi, most likely problem will be the radiator cap not holding sufficient pressure. Regards Phil.
SOURCE: 1991 Honda del Sol Overheating and funny idle
The idle problem kinda sounds like the IAC (Idle Air Control) valve on the intake manifold. Another idea is maybe coolant temp. sensor. And if it's leakings coolant still after replacing all those parts then i would say maybe the water pump is leaking since i believe on those motors its by the timing belt which is behind the plastic cover on the motor so maybe that's why you're not seeing fluid so much because it's in there. Hope some of this helpes, good luck.
SOURCE: 1994 Honda Civic LX\overheating within 2 mile drive
Remove and raise upper hose at thermostat end and remove lower rad hose.
Fill rad with a hose and watch for flow from bottom rad hose and/ or bottom rad hose connecton.......water should fall though rad easily.
Honda rads are cheap.....any restriction....replace rad.
Remove thermostat....fill thermostat housing with hose and watch for water flow at bottom rad hose.
Flush good.
Remove heater hoses.......flush back and forth until a good flow is present "With heater control set to hot" if no or poor flow....replace heater core.
Stop leak can plug everything.
Also.......not likely causing over heating....but ....at your mileage,if you do not know if the timing belt has been changed.....CHANGE IT NOW!
Water pump is optional at this mileage.
Testimonial: "thank you for the very clear, step by step instructions for diagnose and remedy"
SOURCE: 1999 Honda Accord randomly shuts down while driving
The ignitor in the distributor needs changed. This little guy can cause massive headaches. They work intermittently, but once warm, they knock the ignition spark off.
Hope this helps, vote if you think so thanks.
SOURCE: A few weeks ago I
Hi, you wern`t clear on the year and model of your Honda, and was the radiator and hose replaced by a sevice shop or yourselves? Possible causes of your car overheating may be caused by not ``bleeding`` the air out of the cooling system properly. Another problem may be a malfunctioning thermostsat, another problem may be the Electric rad fan not cycling on. There could be a few more causes but I would have to know more details of your car as mentioned above..
SOURCE: 2001 Honda civic overheating, losing coolant, damp passenger floorboard
Damp passenger floor sounds like a heater core. What a pain in the a__. Most probably the dash has to come out to replace. That is the only thing I know of that circulates engine coolant into the passenger compartment.
If you confirm this and want to fix it on the cheap, you can put a crossover hose in the engine compartment and bypass the heater core entirely. This is a $5 fix that works perfectly, mechanically speaking. Unfortunately, you will have no heat. Of course, you may decide that is a better option once you hear a quote on getting the heater core replaced.
Oh yeah, get a new mechanic.
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