revs dropping ryt down almost cutting out

Post by **NafemanNathan** » Tue Apr 09, 2013 3:47 pm

Yeah your idle issue was an actual issue before... Your fan not kicking in isn't necessarily an issue. Have you been bleeding the coolant on level ground? Drive the car up a slight incline (front wheels higher) and then see if the coolant comes out the bleed valve. I had to make a header tank to bleed my 3rd gen properly recently as the radiator neck isn't really high enough to bleed the system with ease. Park it facing up a slight hill and try it then.

If the needle is at halfway then it's not overheating. That's where it should be.

Have you let the engine cool right down and then top the rad up to the bottom of the neck?

89 UKDM BA4 4WS (resto job!) · Post by **wurlycorner** » Tue Apr 09, 2013 4:15 pm

If the gauge hasn't gone above half way, then it hasn't got hot enough to worry about the fan not coming on, I'd say.

It does sound a bit odd that it hasn't come on if the engine had been running for 45 mins, but I guess it's not impossible?

What's the external temp up? Was the cabin heater running during this time?

If there was an air lock in the system, it is possible to fan could have been over-reactive before (i.e. coming on too soon) and you might just have cleared that now so all is back to how it should have been in the first place?

Like nafe says, try bleeding the nozzle and then topping up the rad with the car pointing uphill, just to be sure.

Post by **NafemanNathan** » Tue Apr 09, 2013 4:31 pm

GJMHONDA2012 wrote:yeah the gauge is at halfway and never moved from there,

So that's fine then.

GJMHONDA2012 wrote:and the car is on a slight hill facing down the way,

And this will be why you can't bleed it properly. As said, park it facing up slightly

GJMHONDA2012 wrote:i didnt let the car cool completely down i left it for about an hour or so before i went back out

Let it cool down completely after you've had the coolant oozing bubble-free from the bleed valve, and then top the rad up to the bottom of the neck. You're then good to go

Don't let the fans not kicking in worry you. With the current outdoor temps, the car just being sat there isn't necessarily going to get hot enough within an hour. Only if you see the gauge go above halfway do you need to worry

Post by **NafemanNathan** » Tue Apr 09, 2013 5:00 pm

Happy to hear it bud

89 UKDM BA4 4WS (resto job!) · Post by **wurlycorner** » Tue Apr 09, 2013 5:13 pm

Cool, well done.

(I also have an idle issue on the JDM to sort - that can wait till the brakes and falling down house are sorted first though

)

Post by **Donald** » Tue Apr 09, 2013 5:46 pm

Glad you got it sorted

Might give my EGR a clean up tomorrow too..... I haven't got to go anywhere til Friday so if I gentleman's sausage it up completely it's not the end of the world

Isn't there some sort of gasket that should be there though?

Post by **NafemanNathan** » Wed Apr 10, 2013 2:37 pm

Riverghost · Post by **Riverghost** » Thu Apr 11, 2013 5:31 pm

just read through all of this, definitley reassuring stuff to hear from my point of view (near identical symptoms) well done with sorting the problem GJM!