over heating issue!

[94 Ej1]

I have a f22b sohc in my accord. When i let the car idle the heat gauge goes alittle over the middle mark of the gauge. as soon as i start to go the the needle goes back down to right below the middle line. I just wanted to know if anyone had any ideal what it could be...

[delsoleg1]

water pump

[LS/Vtec]

Possibly water pump. See if your fan is turning on? If no then thats a problem.

[94 Ej1]

Possibly water pump. See if your fan is turning on? If no then thats a problem.

i just replaced the timing belt and water pump... drove like 5000 miles on new pump and belt. never had an issue.

[sir_ef9]

check if the fans turn on when your stopped

[delsoleg1]

was gonna say that also ^^^ but does it go down when u accelarate or when tha car is in motion

[delsoleg1]

if it goes down while in motion than its tha fan if it does it when acceleratin engine than its water pump

[LS/Vtec]

i just replaced the timing belt and water pump... drove like 5000 miles on new pump and belt. never had an issue.

well then check option b.

[94 Ej1]

if it goes down while in motion than its tha fan if it does it when acceleratin engine than its water pump

It went down as soon as i started to accelerate...but how can make it be the water pump

[94 Ej1]

well then check option b.

I deff. will tomorrow... thanks. How long should the fan stay on for?

[delsoleg1]

well it stays on for as long as tha engine is at a certain temp and water pump works by pushing fluid around tha motor if it not good at low rpms it loses pressure and coolant doesnt circulate as much and also bleed tha sytem that can make it overheat also

[94 Ej1]

well it stays on for as long as tha engine is at a certain temp and water pump works by pushing fluid around tha motor if it not good at low rpms it loses pressure and coolant doesnt circulate as much and also bleed tha sytem that can make it overheat also

thanks buddy.. is their any way diagnose the water pump? so i just dont put a need water pump in and have the same problem..

[delsoleg1]

well check all other first make that last on tha list if all other fail than most def it's dat

[LS/Vtec]

Make sure your fan is kicking on. Because every honda i've owned the fan always stops working and it will over heat till you realize it and wire it to power, switch or get a new sensor so it turns it on when needed.

[delsoleg1]

Make sure your fan is kicking on. Because every honda i've owned the fan always stops working and it will over heat till you realize it and wire it to power, switch or get a new sensor so it turns it on when needed.

x2 if it doesent work i usually just put a switch to it so u turn it on when u need to