Doug
where are measuring the temp from? If you are taking a reading from the
rad the coolant has already had a chance to cool and give you an
inaccurate reading. Secondly the temp sending unit should be in the
cylinder head and you could have a circulation problem,check the water
pump.The coolant enters the engine via the lower rad hose to the
water pump then thru the block up to the head and back to the rad thru
the thermostat.
If the water pump is weak the coolant does not circulate properly and
the vehicle will run hot. Also Shaun H. had an excellent sugestion,a
lean mixture runs hot
Dave T. 99 Solar yellow sport cc 4x4
Shaun.Hendricks@bergenbrunswig.com wrote:
>
> My little sister's car had this problem (Toyota GTS) and we did all the
> same things to it. Assumed it was okay but it ended up blowing the engine
> (oil everywhere!). The problem turned out to be that the engine was running
> too lean and causing it to overheat.
> First, make damn sure that the fluid is the correct temp. Strap a
> thermometer (that can handle the heat) to the lower radiator hose. This will
> tell you if your gauge is even close. If it is, then you have a problem with
> the engine. If it isn't and you've replaced the sender and the gauge, the
> only thing I can think of is that you have some blockage around the sender
> unit and it's not letting the unit 'see' the actual water temp, making it
> report a false signal. I'd flush the hell out of the engine...
>
> Shaun H.
>
> ---original message---
> Date: Thu, 18 Feb 1999 23:58:20 -0500
> From: Doug Myers <dougmyers@radix.net>
> Subject: DML: '87 Dakota overheating
>
> Hey guys,
>
> My little brother has a '87 Dakota 2.2/5-speed and the gauge keeps
> indicating that the truck is overheating, but the coolant is only reaching
> 188 degrees. He's changed the guage, sending unit, thermostat, and radiator
> (which was bad anyways). Does anyone have any ideas what might be causing
> this?
>
> Doug
> '99 Dakota 5.2/5-speed/3.92SG
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