Running temps
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Running temps
New member here who has recently moved to the Fabulous city of Las Vegas. Being new to the desert and new to my (993 C2 cab. 16,000 miles no mods) my question concerns running temps. When driving in hot weather 105+, stop and go my temp gage often reaches 10:00+ but never moves into the red. Is this ok, or am I running to high. If it is to high what youd you all reccommend to fix this. My car is a daily driver for me but oboviosly not for the first owner. Yes I do run the A/C but it seems to have no effect on temp,Thanks all,
Eric
Eric
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From: Corpus Christi, Texas
Eric,
Welcome to the board and a big wow to the low milage of your cab. Love to see a picture. As far as the teperature, that seems to be on the high side for our engines-you might do two searches, one on engine temps and one on rewiiring the oil cooler fan so that you can control it to the high speed from the car. It is not too hard a fix and will keep you at a much lower temp.
Al
PS-I moved to Maine from Texas so I do know a little about warm weather.
Welcome to the board and a big wow to the low milage of your cab. Love to see a picture. As far as the teperature, that seems to be on the high side for our engines-you might do two searches, one on engine temps and one on rewiiring the oil cooler fan so that you can control it to the high speed from the car. It is not too hard a fix and will keep you at a much lower temp.
Al
PS-I moved to Maine from Texas so I do know a little about warm weather.
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From: Gemantown, TN
Welcome Eric! Those temps are a bit high for my taste, but not high enough for the fan to turn on high speed. Check www.p-car.com for the high speed fan switch DIY, or look in the archives here, it's a must for stop & go in hot weather. BTW, the A/C won't effect the temps because all the heat is rejected to the cooler in the left front fender, not the engine in the older 911's.
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Gosh guys...Thanks for the fast response...I will attempt the DIY on the high speed fan fix. Thanks for the link, Do you think I anm risking damage at these temps?? May be some time till I can get to the fan. Any idea what an independent shop would charge for the mod? Also any Idea on the cost for the auxillary oil cooler. I love my car and do not want to hurt her, but I cannot leave it iin the garage simply cause its hot
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From: Baltimore, MD
Hi, Korny,
If your temp gauge is at 10:00 or higher, that seems pretty damn hot to me. Those high temps aren't doing your oil and engine any good at all.
Higher than 248 degrees is nail-biting territory, IMHO. The best solution for me was to install a Cargraphic auxiliary oil cooler for track conditions. The temps go no higher than 8:30.
Good luck and welcome!
If your temp gauge is at 10:00 or higher, that seems pretty damn hot to me. Those high temps aren't doing your oil and engine any good at all.
Higher than 248 degrees is nail-biting territory, IMHO. The best solution for me was to install a Cargraphic auxiliary oil cooler for track conditions. The temps go no higher than 8:30.
Good luck and welcome!
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Since installing the high speed fan override switch, my car never gets higher than 194F and that's in 105F stop and go on the 405. I put it in the blank in the console between the wing and top switches. Looks factory OEM!
You can also have the fan on all the time by disconnecting the plug behind the passenger side head light until you get to the fan switch.
Welcome!
You can also have the fan on all the time by disconnecting the plug behind the passenger side head light until you get to the fan switch.
Welcome!
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From: Southwest Idaho
First of all welcome to another desert dweller! Korny I am gonna give you a secret I have never told anyone. I live in Ridgecrest Ca (in the Mojave) and when its over 90 degrees I quietly raise the garage door look at the 993 smile and jump in my truck. Works every time and the temp gauge stays rock solid at below zero.
It gets 110+ here through july aug and sept and I have no problem with this method. this summer has been really mild and I have taken the 993 out more than I ever thought. Like last weekend. But I would get the aux cooler if you HAVE to drive it in Vegas during the summer. Otherwise get a daily driver, and wait till October and stay away from Glitter Gulch!
It gets 110+ here through july aug and sept and I have no problem with this method. this summer has been really mild and I have taken the 993 out more than I ever thought. Like last weekend. But I would get the aux cooler if you HAVE to drive it in Vegas during the summer. Otherwise get a daily driver, and wait till October and stay away from Glitter Gulch!
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From: Burbank, California
Welcome to the board! I had mine at about the same temperature as yours before the modification discussed at this thread.
https://rennlist.com/forums/showthre...t=trace+jumper
I also thought about installing a fan switch (but I don't have the skills like the most of the folks here
). Anyway, the jumper method was my preference because the fact that the high speed fan turns on/off automatically and it works like a charm! It was pretty easy to do, and now it stays at about 9 o'clock even at 100*+ temp. But first you should diagnose your system as described at p-car.com. Good luck.
https://rennlist.com/forums/showthre...t=trace+jumper
I also thought about installing a fan switch (but I don't have the skills like the most of the folks here
). Anyway, the jumper method was my preference because the fact that the high speed fan turns on/off automatically and it works like a charm! It was pretty easy to do, and now it stays at about 9 o'clock even at 100*+ temp. But first you should diagnose your system as described at p-car.com. Good luck.
Last edited by jkuniverse; Sep 2, 2004 at 03:30 AM.
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From: Albuquerque, NM
Eric,
Let me second fbfisher's suggestion- it literally takes less than 5 minutes to pop out the passenger-side headlight, disconnect the oil temp plug to force it to run at high speed all the time, and re-fit the headlight. This will keep your temps low until you diagnose the problem.
Also, as others have suggested, be sure to check out the p-car.com DIY on oil cooler temps and check to make sure whether the oil cooler ballast resistor is toast. This is very common on 964/993's and leads to elevated temps as the fan won't run in low speed and only turns on at high speed once you're already hotter than you'd like.
Finally, check to make sure that the oil thermostat is opening. They do fail (mine did). You can do this easily by feeling the passenger side front fender when the car is warm. The passenger fender should feel warm to the touch, especially compared to the driver's side. If it doesn't, get it fixed ASAP as no amount of airflow through the cooler is going to help you if there's no oil up there!
Paul
Let me second fbfisher's suggestion- it literally takes less than 5 minutes to pop out the passenger-side headlight, disconnect the oil temp plug to force it to run at high speed all the time, and re-fit the headlight. This will keep your temps low until you diagnose the problem.
Also, as others have suggested, be sure to check out the p-car.com DIY on oil cooler temps and check to make sure whether the oil cooler ballast resistor is toast. This is very common on 964/993's and leads to elevated temps as the fan won't run in low speed and only turns on at high speed once you're already hotter than you'd like.
Finally, check to make sure that the oil thermostat is opening. They do fail (mine did). You can do this easily by feeling the passenger side front fender when the car is warm. The passenger fender should feel warm to the touch, especially compared to the driver's side. If it doesn't, get it fixed ASAP as no amount of airflow through the cooler is going to help you if there's no oil up there!
Paul
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From: Solana Beach, CA
Cargraphis sells a dual Turbo S cooler...check it out. The two little coolers don't restrict air flow to the air conditioner condenser located in the left front fender.
I have friends with the Cargraphics cooler and they swear by it...it is about $2,000 with the strong Euro aginst the dollar.
Were I living in Las Vegas or Ridgecrest, I'd probably go the Cargraphics route. Kary at Gropu 9 Motorsports, a Rennlist sponsor, had a group buy on them a while ago.
I have friends with the Cargraphics cooler and they swear by it...it is about $2,000 with the strong Euro aginst the dollar.
Were I living in Las Vegas or Ridgecrest, I'd probably go the Cargraphics route. Kary at Gropu 9 Motorsports, a Rennlist sponsor, had a group buy on them a while ago.
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one added thought - that seemed to work for me is get the RS brake scoops and don't plum the brakes. it seems to add a lot of air flow to the oil cooler and has substantially cooled down my car.
cheers,
boris
cheers,
boris
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From: Down the rabbit hole
Originally Posted by Paul E. Dodd
check to make sure whether the oil cooler ballast resistor is toast.
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From: London, UK
Originally Posted by stresser
You might also want to check that the oil cooler fan is actually working and that you don't have a malfunctioning relay/fuse.