406 coolant temperature sensor problem
ken kerrison
lights (and being difficult to restart). Felt like a fuel problem. The
service manager said the coolant sensor was registering error messages
and the ECU was reset. When this did not solve the problem the sensor
was replaced.
So far so good.
Has anyone else had this sort of problem? I will update this posting
when it is clear whether the problem has finally been solved.
A search of postings to this group reveals temperature sensor problems
with other models but nothing on 406s.
Alex Reid
to 2000-2500 and as soon as you touch the gas it coughs and dies. Generally
if you leave it to its own devices it sorts itself out, eventually.
Wondering if this could be whats up with mine...
"ken kerrison" <kker...@ozemail.com.au> wrote in message
news:9d801830.02122...@posting.google.com...
Simon Barnard
Yes I had this problem a while ago with my 406 V6 auto, it took a number of
trips to the dealer(s) to find the problem, whilst suffering the
inconvenience and embarassment of the car stalling in various locations.
Eventually the problem was found to be a temperature sensor problem, I can't
remember which, but apparently it was recording the engine at being at -40
degrees, so presumably it was overheating. Unfortunately this was when the
car was my company car (now private) and the receipt that would tell me the
part was submitted to the company for expenses. But the symptoms you
describe are exactly like mine.
Since the part was replaced the problem has never reoccured, I hope the same
is true for you.
Cheers
Simon
"ken kerrison" <kker...@ozemail.com.au> wrote in message
news:9d801830.02122...@posting.google.com...
ken kerrison
and, so far, it seems to have worked. They said the old one was
sending an error message to the ecu. I note from the Haynes book that
all this sensor does is provide info for the engine management system.
If it fails the ECU manages without it but with reduced efficiency. It
would not seem to cause overheating - there are no less than three
other sensors involved in the cooling system. One contols both the
warning light and the temp gauge, another is part of the thermostat -
a purely mechanical device - and another contols the cooling fan.
Now we seem to have fixed the faltering stalling I seem to have an
overheating problem which they are checking as I write this. That is
why I looked up the systems involved in Haynes.
I will report on the outcome of this latest problem if it proves
interesting.
Alex - your problem does not sound like mine. Mine was occasional
faltering and stalling - felt like dirty fuel.
"Simon Barnard" <sbar...@uk.uumail.com> wrote in message news:<v0ur0te...@corp.supernews.com>...
ErJe
equivalent for the last 9 months. Especially problematic now in cold
temperatures (today - 11 C/Norway). (I have to use an engine heater system
before starting). Idle stepper motor changed (twice!), memory chip and a
pressure sensor also changed. Not to mention numberous reprogrammings. Four
visits at dealer and no solution so far. The theory of temp sensor is new to
me - I will bear this in mind for the nest visit to my dealer....
(Have posted previously on this problem)
Regards
ErJe
"ken kerrison" <kker...@ozemail.com.au> wrote in message
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ken kerrison
sensor. Note also that the stalling problem was accompanied by
occasional faltering - like a partially blocked fuel filter. It occurs
to me that other faulty sensors could yield the same sort of result.
While all this was going on the air bag light was also staying on,
sometimes. I think the service manager said they have applied the fix
mentioned in this group - replacing a set of connectors with solder.
"ErJe" <erling...@chello.no> wrote in message news:<oF0R9.3601$T41.13497@amstwist00>...
ErJe
just problems around idle rpm. Remember someone mentioning a connector fix
but unable to find back on this (should be interesting to know which
connector was changed or resoldered). My dealer also complains on the
absence of error codes in the electronic control unit. (Today - 15 C and
lower temps coming up this weekend..... A garage and heater are a must these
days....)
Regards
ErJe
Oslo/Norway
"ken kerrison" <kker...@ozemail.com.au> wrote in message
news:9d801830.03010...@posting.google.com...
> See my last post for more information on the precise role of the
> sensor. Note also that the stalling problem was accompanied by
> occasional faltering - like a partially blocked fuel filter. It occurs
> to me that other faulty sensors could yield the same sort of result.
> While all this was going on the air bag light was also staying on,
> sometimes. I think the service manager said they have applied the fix
> mentioned in this group - replacing a set of connectors with solder.
>
.
ken kerrison
air bag wiring. I must have a closer look at these wiring diagrams
because they have much information on sensors, engine management and
cooling systems. One thing I found in Haynes is that the air bag
system includes a seatbelt tensioning system. When the air bags fire
small charges are also ignited to take up any slack in the seat belt.
This may explain why the troublesome connectors are under the seat. I
also know I have pyrotechnics below me as well as in front of me.
The Haynes 406 book does not cover the v6 engine but I have found it
useful for everything else.
"ErJe" <erling...@chello.no> wrote in message news:<6zjR9.3818$T41.14058@amstwist00>...