How do I get C5 to run cooler?
Thread Starter
Drifting
Joined: Oct 2000
Posts: 1,762
Likes: 0
From: Wildwood FL
Cruise-In II Veteran
Cruise-In III Veteran
How do I get C5 to run cooler?
My 99 Coupe coolant runs between 185-200 degrees on the highway but runs at 220-230 around town and just idling. I have a low temp thermostat (180 I think) and the coolant level is OK. Any ideas???
Thanks
Thanks
Le Mans Master
Joined: Aug 2001
Posts: 8,059
Likes: 0
From: Good Ol' NC
Re: How do I get C5 to run cooler? (wickedvette)
you only have a low tstat if you put one in. You need to either get a hypertech or get someone to program it so it is set to utilize the tsat and kick on fans sooner. I am not a tech but hope this info gives you some help :seeya :chevy
Racer
Joined: Oct 2001
Posts: 310
Likes: 0
From: Brooklyn NY
Re: How do I get C5 to run cooler? (wickedvette)
My 99 Coupe coolant runs between 185-200 degrees on the highway but runs at 220-230 around town and just idling. I have a low temp thermostat (180 I think) and the coolant level is OK. Any ideas???Thanks
I replaced my thermostat with a 178° a year ago without re-programming. I had similar result to yours. Cartek did a tuning reprogramming a few weeks ago and now the car is between 181° and 185° all the time.
Hope this helps
Former Vendor
Joined: May 2002
Posts: 1,839
Likes: 0
From: Belton Texas
Re: How do I get C5 to run cooler? (wickedvette)
Pick up a used Hypertech Programmer from someone here on the forum or on E-bay. I have bought 1 here and 2 on E-bay in the past with no problems.
Instructor
Joined: Mar 2002
Posts: 246
Likes: 0
From: valrico fl
St. Jude Donor '05
Re: How do I get C5 to run cooler? (wickedvette)
Turn the fans on sooner. I would think you could do this manuelly but I am not sure what wires to tap into. I have posted this question before with very little response. I see the ls1 camaro's guys have done this, so I know it can be done.
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Burning Brakes
Joined: Mar 2000
Posts: 962
Likes: 6
From: Jackson MI
Re: How do I get C5 to run cooler? (aces)
See a tuner with LS1 Edit and have them set the fans to come on sooner. I had mine done when heads and can were installed. With the stock thermostat my H2O temp never gets above 192. Oil maxes out at 207. :yesnod: :yesnod: :yesnod: :lol: :lol: :lol: :lol: :lol: :seeya
