Re: transmission dipstick level reading
"Gord Beaman" <firstname.lastname@example.org> wrote in message
> "J Strickland" <email@example.com> wrote:
>>"badgolferman" <REMOVETHISbadgolferman@gmail.com> wrote in message
>>> I'll admit despite reading a bit and having people explain automatic
>>> transmissions to me I am clueless as to how they work and am more
>>> scared when there is a mysterious noise or funny shifting happening
>>> with the transmission than if there's a funny noise from the engine.
>>> That said, I have a question about how to read the dipstick.
>>> When the car is cold, the level appears to be above the HOT marking.
>>> After driving around for some time with the van running and in Park,
>>> the level is right at the HOT level. What is the COLD marking for and
>>> why does the level actually drop after the hydraulic fluid gets hot?
>>IGNORE the dipstick when the trans is cold.
>>When the trans is warmed up, the fluid is pumped into all sorts of places,
>>as the trans cools then the fluid drains from the far away places, and
>>makes it appear as though the level has risen.
>>Always check the trans when warm, engine running, and it Park.
>>Checking when cold will tell you the color of the fluid, but not much more
>>unless you are a transmission guy. Ray, from the board here, will know
>>he sees on a cold transmission stick, but most of us will not know. The
>>information for us regular guys will come from a hot transmission.
> ....and Ray's keyboard.
> (use gordon in email)[/color]
OK, I'll share the factory rep's secret for diagnosis from looking at a cold
automatic transmission dip stick:
Translucent red - fluid is OK.
Note: <fluid is OK> does not necessarily mean that the transmission is OK or
that fluid level is OK.
Any color but translucent red - fluid is not OK and more checking is
necessary, i.e., smell the fluid, research service and operating history,
pressure test, stall test, manual shift test.
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