Honda Car Forum

i got a 90 integra and when the rmp goes over 3000 rpm my heat gauge gose
all the way to cold then when i let of the gas it gose back to
normal...what could it be??????

"ted5" <gramo1ster@gmail.com> wrote in
news:2d0fcb1958397c21ae7f9143044cf4e3@localhost.ta lkaboutautos.com:

> i got a 90 integra and when the rmp goes over 3000 rpm my heat gauge gose
> all the way to cold then when i let of the gas it gose back to
> normal...what could it be??????
>
>



Lower rad hose collapsing, probably. They're aftermarket, or old and mushy.

--
TeGGeR®

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/

"TeGGeR®" <tegger@tegger.c0m> wrote in
news:Xns97D9E2195FFEAtegger@207.14.116.130:

> "ted5" <gramo1ster@gmail.com> wrote in
> news:2d0fcb1958397c21ae7f9143044cf4e3@localhost.ta lkaboutautos.com:
>
>> i got a 90 integra and when the rmp goes over 3000 rpm my heat gauge
>> gose all the way to cold then when i let of the gas it gose back to
>> normal...what could it be??????
>>
>>
>
>
>
> Lower rad hose collapsing, probably. They're aftermarket, or old and
> mushy.
>

I'd replace the thermostat at the same time.

--
Jim Yanik
jyanik
at
kua.net

i changed the lower rad hose and the thermostat and the rad fliud...chould
the water pump be going??????

"ted5" <gramo1ster@gmail.com> wrote in
news:3434e33025ae27473d9868a8cb3706c4@localhost.ta lkaboutautos.com:

> i changed the lower rad hose and the thermostat and the rad
> fliud...chould the water pump be going??????
>


You're saying the temperature gauge *still* starts to read TOO COLD when
you rev the motor, but shows normal when you let off the gas?

How long does the engine have to be over 3,000 rpm before the temp gauge
starts to show cold? And how long *under* 3K before it starts to read
normal?

--
TeGGeR®

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/

"ted5" <gramo1ster@gmail.com> wrote in message
news:3434e33025ae27473d9868a8cb3706c4@localhost.ta lkaboutautos.com...
>i changed the lower rad hose and the thermostat and the rad fliud...chould
> the water pump be going??????
>
The usual reason for collapsed hoses is a bad radiator cap - it doesn't let
the coolant back in when the engine cools. Diagnosis of that part is easy
enough; just look at the lower radiator hose when the engine is cool. Of
course, collapse is still possible if the hose is no good. That is pretty
obvious when you squeeze the hose when cool - it will be very soft.

Mike

i changed the lower rad hose and it dosent do it anymore only when the rmp
is close to redline but it only gose down alittle bit

"ted5" <gramo1ster@gmail.com> wrote in
news:a48f5695dc176556004e43aef8eb667e@localhost.ta lkaboutautos.com:

> i changed the lower rad hose and it dosent do it anymore only when the
> rmp is close to redline but it only gose down alittle bit
>
>


Aftermarket hose? OEMs don't do that.

--
TeGGeR®

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/