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High Temperature Reading (Cat C9)

Yahoo Message Number: 22651
We just took our first trip in our new 2006 Inspire. We have a Cat C9.
We were running about 60-65 mph and no air conditioning.

The temperature gauge was reading 210 most of the trip. The coolant levels showed full. This seems exceptionally high to me.
Has anyone else experienced this problem? If so, do you know if this is normal or what is causing the high temperature readings?

Glen Bolon

'40 Inspire 360 (#51844)

Re: High Temperature Reading (Cat C9)

Reply #1 –
Yahoo Message Number: 22653
Glen,

I think a reading on the gage of around 210 degrees is normal. The new ACERT Cat (by design) does run a little warmer than what your probably use to. Also, if your gage is like mine the reading is about 12 degrees warmer than the actual engine temp. I think you will find that your engine instruments are not that accurate, but still very useable for relative engine information.
Congrats, on the new coach, I think your going to like it.

Jim

2005 40' Inspire #51225

Re: High Temperature Reading (Cat C9)

Reply #2 –
Yahoo Message Number: 22659
The ultimate indicator of high temperature is engine shut-down due to overheating. That happened to us recently, as discussed in a previous posting (22638). When the engine shut down, the temperature gauge showed 220 degrees and an Engine Warning light came on. After replacement of the fan motor and controller, the temperature gauge shows about 195 degrees when driving during the coolest time of the day between 55-65 mph. Given our experience, we would become anxious about a temperature reading of 210 degrees. That would be too close for comfort.

A question I would like the answer to is this: What temperature threshold will be sensed as a condition requiring engine shut-down? I'm sure we would all like our C9 engines operate at a temperature well below that threshold.

Gary & Sandy Collins
'05 Inspire 51491

In Country-Coach-Owners@yahoogroups.com, "lgbolon" wrote:

Quote
>

We just took our first trip in our new 2006 Inspire. We have a Cat

C9.

Quote
We were running about 60-65 mph and no air conditioning.

The temperature gauge was reading 210 most of the trip. The > coolant levels showed full. This seems exceptionally high to me.

Has anyone else experienced this problem? If so, do you know if

this

Quote
is normal or what is causing the high temperature readings? >

Glen Bolon

'40 Inspire 360 (#51844)
Quote from: lgbolon
We just took our first trip in our new 2006 Inspire. We have a Cat

C9.

Quote
We were running about 60-65 mph and no air conditioning.

The temperature gauge was reading 210 most of the trip. The > coolant levels showed full. This seems exceptionally high to me.

Has anyone else experienced this problem? If so, do you know if

this

Quote
is normal or what is causing the high temperature readings? >

Glen Bolon

'40 Inspire 360 (#51844)
Quote from: lgbolon
We just took our first trip in our new 2006 Inspire. We have a Cat

C9.

Quote
We were running about 60-65 mph and no air conditioning.

The temperature gauge was reading 210 most of the trip. The > coolant levels showed full. This seems exceptionally high to me.

Has anyone else experienced this problem? If so, do you know if

this

Re: High Temperature Reading (Cat C9)

Reply #3 –
Yahoo Message Number: 22662
Glenn, if you take alook at the "Files" section on this board I have posted an excel document showing readings from a trip with my Inspire.
You will see the values are not that high though these were read from a silver leaf VMSpc software direct from the wiring harness. My gauges, when running are normally 10 to 25 degrees higher for both the engine and the transmission. Do not follow the guages, they are inaccurate. Hope this helps.
Kary

05 Inspire 36'
#51499

Quote from: lgbolon

Re: High Temperature Reading (Cat C9)

Reply #4 –
Yahoo Message Number: 22669
Gary, your Cat owners manual should be able to answer that question under an index heading of "operating range" or some such. I believe that the Cat web site has manuals on line and you might be able to search the text for the kind of information you seek.

George in Birmingham
'04 Allure 31038

Quote from: kaena65_80
The ultimate indicator of high temperature is engine shut-down due > to overheating. That happened to us recently, as discussed in a > previous posting (22638). When the engine shut down, the

temperature

Quote
gauge showed 220 degrees and an Engine Warning light came on. After > replacement of the fan motor and controller, the temperature gauge > shows about 195 degrees when driving during the coolest time of the > day between 55-65 mph. Given our experience, we would become

anxious

Quote
about a temperature reading of 210 degrees. That would be too close > for comfort.

A question I would like the answer to is this: What temperature > threshold will be sensed as a condition requiring engine shut-down? > I'm sure we would all like our C9 engines operate at a temperature > well below that threshold.

Gary & Sandy Collins
'05 Inspire 51491
> In Country-Coach-Owners@yahoogroups.com, "lgbolon" > wrote:
>

> We just took our first trip in our new 2006 Inspire. We have a

Cat

Quote
C9.

> We were running about 60-65 mph and no air conditioning.
>

> The temperature gauge was reading 210 most of the trip. The > > coolant levels showed full. This seems exceptionally high to me.
>

> Has anyone else experienced this problem? If so, do you know if > this

> is normal or what is causing the high temperature readings? > >

> Glen Bolon

> '40 Inspire 360 (#51844)
>

[quote author=lgbolon"

>

> We just took our first trip in our new 2006 Inspire. We have a

Cat

Quote
C9.

> We were running about 60-65 mph and no air conditioning.
>

> The temperature gauge was reading 210 most of the trip. The > > coolant levels showed full. This seems exceptionally high to me.
>

> Has anyone else experienced this problem? If so, do you know if > this

> is normal or what is causing the high temperature readings? > >

> Glen Bolon

> '40 Inspire 360 (#51844)
>

[quote author=lgbolon"

>

> We just took our first trip in our new 2006 Inspire. We have a

Cat
George in Birmingham
2003 Magna 6298

Re: High Temperature Reading (Cat C9)

Reply #5 –
Yahoo Message Number: 22670
Here is the Caterpillar site which has some very good info on the C9.
http://ohe.cat.com/cda/layout?m=72020&x=7
Louis

Gary, your Cat owners manual should be able to answer that question under an index heading of "operating range" or some such. I believe that the Cat web site has manuals on line and you might be able to search the text for the kind of information you seek.

George in Birmingham
'04 Allure 31038

Re: High Temperature Reading (Cat C9)

Reply #6 –
Yahoo Message Number: 22672
Kary, I just downloaded your data and am in the process of reviewing the information. Thanks for sharing it with us. After reviewing the data, I will comment further, but would like to make a couple of comments here as a first-time motorhome owner/operator. (1) The instrumentation engineered into the "World's Finest Motorcoach" ought to have a reliable degree of accuracy, given the criticality of these readings. It they're not accurate, Country Coach owners ought to be complaining about it. (2) I've visited the Silverleaf facility in Albany, OR and am impressed with their technology.
However, this equipment is very expensive and not widely available.
What are Inspire owners who can't afford or conveniently obtain the Silverleaf VMSpc supposed to rely on if not the temperature gauge? That fact is, when the temperature gauge indicated 220 degrees, accurate or not, my C9 engine shut down.

Gary Collins

'05 Inspire 51491

Re: High Temperature Reading (Cat C9)

Reply #7 –
Yahoo Message Number: 22713
Hi Gary,

Agree. Last weekend we completed our first long distance trip to Las Vegas and back, a 1080 mile round trip over Tehachapi Pass and across Majave desert. Ambient temp. in the desert were 98+.
On the outbound trip traffic was light and we had a tailwind. On the return trip out of Las Vegas traffic was very heavy, stop, go and a head wind. Max water temp seen was 210, average @ 190, Transmission max was 220, average 200, cruising oil pressure minimum 38-40psi when really hot, average 46. All based on coach gage readings.
MPG overall 8.8.

Question - I have driven many types of vehicles with numerous gages and makes over several years. All have prooved reasonably accurate within 5% or so. Are Country Coach gages really so unreliable?.

I had my oil pressure gage re-verified by local RV shop and Caterpillar last week, and both said gauge was ok.
Country Coach once suggested to me that the sensor could be "lazy".

Silverlink - Contacted them 4 weeks ago for VMCPC details, prices with navigation system. Received a good e amail reply back with $4,000 price tag. But when I asked for a local agent in the Bay Area to fit the system, communication back to me stopped. Does Silverlink really expect customers to drive to their factory for fitting the systems?.

Two local RV dealers here were also very vague on knowing or fitting Silverlink systems. (Caterpillar offer their own, but it is for trucks and very boxy.

T & P D.

06 Inspire 51554

Regards,

Re: High Temperature Reading (Cat C9)

Reply #8 –
Yahoo Message Number: 22717
No, CC gauges are not particularly inaccurate. People think that are for two reason.
1. they have a digital display which they figure has to right(they're probably right)

2. It doesn't agree with the analog which they figure must be wrong.

The real issue is that they use different sensors in different locations in the systems. I know that some senders or displays or electrical conections are bad but in general, people over trust digitals and under trust analogs.

George in Bitmingham
'04 Allure 31038
George in Birmingham
2003 Magna 6298
 

Re: High Temperature Reading (Cat C9)

Reply #9 –
Yahoo Message Number: 22723
Hi All

I have a 2001 intrugue and thought that the temp guage was reading hi. Took the guage and sender out of the coach and tested it vs high quality guage finding that the CC guage was reading Hi. I then caled the Mfg, of the guage and sender and found that the numbers that I measured were within specs of the guage ( high side but in spec.)

data has been posted in the files section excel file.
Ordered a new guage and sender with very near the same result. So I now have a Road Relay 4 unit in the coach. I do not know what the error is for it but is better the guage for sure.

Marv intrigue 2001 11314