MJ 98 A/C fans Part2 OBDII
#1
MJ 98 A/C fans Part2 OBDII
New (used) fans came in and went in like no problems at all. Come on with A/C and run when car is stopped and still hot. That is NOW sorted.
I have found an interesting thing with the Ultra Gauge and this one. It shows I get 1,125 MPG and have a RANGE of 20.235 miles. Something is screwy for sure.
Engine temp with a 195 deg stat is around 202 to 210 with outside temp of 90 and 80% humidity. The DASH gauge is not even at the HALF WAY MARK.
If cold is 7:00 and COOKED is 11:00 this runs at 8:45 to 9:00 (using a clock reference so it almost make sense.
Next job is a FULL cooling system flush and a pressure test of the system which should be good since not drips, steam or noise for the system.
I have an AutoXray OBD reader and will check the car with that since the OBDII signal for MOST functions makes NO SENSE AT ALL.
I have found an interesting thing with the Ultra Gauge and this one. It shows I get 1,125 MPG and have a RANGE of 20.235 miles. Something is screwy for sure.
Engine temp with a 195 deg stat is around 202 to 210 with outside temp of 90 and 80% humidity. The DASH gauge is not even at the HALF WAY MARK.
If cold is 7:00 and COOKED is 11:00 this runs at 8:45 to 9:00 (using a clock reference so it almost make sense.
Next job is a FULL cooling system flush and a pressure test of the system which should be good since not drips, steam or noise for the system.
I have an AutoXray OBD reader and will check the car with that since the OBDII signal for MOST functions makes NO SENSE AT ALL.
#2
#3
Mr. George,
Spike had documented that the Ultra Guage mpg and range calcs need decimal point moved over 1. Temps will be right on. Were your posted temps at freeway speed or at idle?
If rad flush does not bring it down where you want it I suggest you switch to a 180 like I have.
Spike had documented that the Ultra Guage mpg and range calcs need decimal point moved over 1. Temps will be right on. Were your posted temps at freeway speed or at idle?
If rad flush does not bring it down where you want it I suggest you switch to a 180 like I have.
Ran the car since the post and it HELD 202 deg the whole time. It was LOW on water the first test so that let it creep up.
The P38 runs at 194 on the highway and 202 to 206 in town with A/C on.
Will run it Sunday for about 25 miles on all kinds of road to see what it does.
Do you THINK the analog gauge is BAD that is why it is holding steady and not jumping up? ALSO the AutoXray showed the temp 4 deg LOWER than the Ultra gauge.
#4
Analog gauge is made to average signal over time, so it responds slowly, not to small changes. Can't move decimal over, it is just how they made it, I guess. As for one scanner showing different, that is strange, as the the OBDII port sends it out in digital fashion.... You would want to see the temps on highway run about what the opening temp is for the stat, so in the 190's. In town, it should also creep up some, similar to the P38.
#5
Analog gauge is made to average signal over time, so it responds slowly, not to small changes. Can't move decimal over, it is just how they made it, I guess. As for one scanner showing different, that is strange, as the the OBDII port sends it out in digital fashion.... You would want to see the temps on highway run about what the opening temp is for the stat, so in the 190's. In town, it should also creep up some, similar to the P38.
Letting it cool so I can adjust the amount of water in it.
#6
#7
I sucked out the water down to the SEAM in the tank before that test.
I THINK once I clean the radiator air flow area I should be fine.
Other then the temp worry, after the P38 you can understand that one.
I do have a COMPLETE parts truck with an engine with 198,000 on it and no title so parts are behind the shop if I need them.
Have a good Memorial Day.
#8
#9
Who has a 180? I was looking at a racing 165 but do not think it will seal.
#10
Mr. George, any local parts store will have 160-180-and 195 for the D1 blocks, it also fits around 3000 various GM. See Duralast/Thermostat (15358) | 1998 Land Rover Discovery 8 Cylinders 2 4.0L MFI OHV | AutoZone.com