Are these temperatures too high?
#21
07-30-2021, 08:10 PM
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In my limited experience the IR numbers will never exactly match the coolant temperature. The IR’s are reading the temp of whatever the coolant is in, not the coolant itself. You can expect the coolant temp to be higher than the metal pipe or rubber hose that the IR is reading. The difference will vary.
Z
Z
#22
07-30-2021, 09:09 PM
In my limited experience the IR numbers will never exactly match the coolant temperature. The IR’s are reading the temp of whatever the coolant is in, not the coolant itself. You can expect the coolant temp to be higher than the metal pipe or rubber hose that the IR is reading. The difference will vary.
Z
Z
Yes, thank you, I will keep that in mind.
#23
08-01-2021, 01:25 PM
Senior Member
My OBDII reader gives me water temp via a cellphone app, which I monitor 100% of the time. My '05 4.2L would climb to about 208* F at stop lights around Las Vegas in the summer, but back down to 203*-204* for normal driving in town. Crossing the desert to southern California in 115*F heat, it would rise as high as 218* F while climbing long hills, prompting a high pucker factor (I didn't know that that wasn't really excessive). I would shut off the AC, turn the heater on, and open both windows going up hills in an effort to keep it from going higher, then turn the AC back on and close the windows only while cruising level or going downhill. Did not impress my bodacious red-headed GF at all... A new 185* thermostat & housing, a flushed radiator, and a new reserve tank (and cap!!!) brought my car back to 195*-204* normal operating temps both around town and on the road; nothing higher than 208* noted since then.
#24
08-01-2021, 01:40 PM
#25
08-01-2021, 02:01 PM
Senior Member
#26
08-01-2021, 02:14 PM
I was wrong when I said the temps. posted seemed normal. Took another drive to top of pass and temp. reached 230 and fans going crazy. Replaced thermostat with a NAPA unit, made in Israel. Drove around town this morning 80 degrees and uphill. Temperature never exceeded 205 and fans never came on. I am using Autool about thirty some bucks, many functions and just plugs into OBD2 outlet
The following 2 users liked this post by Terrific:
giandanielxk8 (08-01-2021),
Redline (08-01-2021)
#27
08-01-2021, 02:39 PM
Senior Member
CA Jag, I haven't found an OBDII transmitter or Android App that gives me oil temps, just the coolant temp. My app has an adjustable alarm setting for coolant temp; I have it set at 215* F. The factory gauges in the XK8s will not give you gradual changes; they only indicate that you've just fried your engine, so the RealGauge solution is a great investment for real time monitoring.
#28
08-01-2021, 04:52 PM
Senior Member
Redline, not sure if OBD11 output includes oil temp. What app are you running? Alarm set sounds good. Agree on factory gauges. LOL Seafrost definitely entered into my decision to buy an XK that barely ran. It looks like a custom paint job. Of course, any color looks good on an XK because it's a gorgeous car.
Terrific, I bought an Autool X60 which is supposed to work w/ my 2000. No idea why but it won't connect. Very useful and works fine w/ my vintage Honda Pilot. What year is your Jag? Anyone else try Autool X60 w a pre 2003 XK?
Terrific, I bought an Autool X60 which is supposed to work w/ my 2000. No idea why but it won't connect. Very useful and works fine w/ my vintage Honda Pilot. What year is your Jag? Anyone else try Autool X60 w a pre 2003 XK?
#29
08-01-2021, 06:24 PM
Senior Member
You are correct, you actually cannot get oil temp via the OBDII... There's lots of good apps out there, I'm using the paid version (hate those pop-ups of the free version) of an app called Olivia Drive. No big glitzy graphics, but I can monitor 8 different things at once, including vehicle speed, engine speed, coolant temp, voltage, and other useful info, (tho I really only monitor the coolant temp). Seafrost is a gorgeous color, it actually appears to change with the ambient light. Mine is mostly a 2005 as long as you don't factor in the $7,600+ in replaced parts I've installed over the past 5 years... As soon as I get the convertible hydraulic lines replaced, it's pretty much a new car...
Last edited by Redline; 08-01-2021 at 09:58 PM.
#31
08-01-2021, 07:46 PM
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Redline, not sure if OBD11 output includes oil temp…….”
“…….., I bought an Autool X60 which is supposed to work w/ my 2000. No idea why but it won't connect. Very useful and works fine w/ my vintage Honda Pilot. What year is your Jag? Anyone else try Autool X60 w a pre 2003 XK?
“…….., I bought an Autool X60 which is supposed to work w/ my 2000. No idea why but it won't connect. Very useful and works fine w/ my vintage Honda Pilot. What year is your Jag? Anyone else try Autool X60 w a pre 2003 XK?
I'm getting it (the oil temperature). However I’d trade that for the oil pressure via the OBD-2 , which I don’t get.
I’m probably the only owner who likes the antiquated look of the early NAV unit, so ditching it in favor of the real gauge set-up is not an option for me. The AuTool X60 is a life saver. The only other thing I’d really like to have is the transmission temperature also. Of course I can get that on my OBD-2 reader ( icarsoft LRv1 ). But it would handy to have it included on the X60.
Z
PS the water temp and oil temp numbers show below are with the engine just having ran a minute or two, not fully warmed up.
Last edited by zray; 08-01-2021 at 07:50 PM.
#32
08-01-2021, 08:47 PM
Veteran Member
If you want oil pressure you have to add RealGauge (w/oil option) or a dedicated separate gauge, both of which add a true oil pressure sensor.
#33
08-01-2021, 08:50 PM
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#34
08-03-2021, 04:34 PM
I decided not to keep waiting for the ELM327 to be delivered. I opened the system and removed the thermostat. I put it in a pot of water and let it boil while I watched over it with a digital thermometer. The Tstat was supposed to open at 187°F. The thermometer made it all the way to 212°F, and the water was boiling but the thermostat never opened. I bought a new one and replaced it. I also did a 30-70 dexcool-water mix with Water Wetter.
I am going to test drive the car in a few minutes.
I am going to test drive the car in a few minutes.
#35
08-03-2021, 05:35 PM
I concluded the test drive with the new T-stat. It was 25 miles of hard driving. I mixed canyon style roads with high revs and city driving and a little of highway driving. Ambient temperature was 86°F. According to RealGauge, the temperature never exceeded 215°F even in the most demanding conditions. At the highway at 65 mph, the temperature was steady at 200°F. At idle the temperature was always at 207°F. Only when revving high while up a 60° gradient did the temperature reach 215°F at 5,000 rpm.
The new thermostat solved the problem. I would never have caught it in time if it wasn’t for the RealGauge. Another happy ending. Steve, your product saves many X100s.
The new thermostat solved the problem. I would never have caught it in time if it wasn’t for the RealGauge. Another happy ending. Steve, your product saves many X100s.
#36
08-03-2021, 07:21 PM
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#38
08-03-2021, 07:27 PM
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#40
08-04-2021, 06:07 AM
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