Need help my Evo is over heating.
Newbie
Joined: Feb 2008
Posts: 89
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From: Boston
Update:
I put a grounding wire directly from the battery to one of the thermostat bolts. I also re-torqued the head studs to 90 ft.lbs in case any of them was lose since I recently changed the head gasket (20 miles ago) and they were all spot on!
It's also worth mentioning that I am running a mini radiator with a single slim fan, and the fan seems to be working fine. I also left the rad cap off the radiator during idle and no air bubbles were showing (for 10 mins).
While idling everything seemed fine, no over temp indication on the cluster, however, the min I started moving the car out of the drive way, the cluster gauge started increasing till it went to full hot. in the mean time, my logs were showing a max of 206F at most.
Any other ideas?
Thanks
I put a grounding wire directly from the battery to one of the thermostat bolts. I also re-torqued the head studs to 90 ft.lbs in case any of them was lose since I recently changed the head gasket (20 miles ago) and they were all spot on!
It's also worth mentioning that I am running a mini radiator with a single slim fan, and the fan seems to be working fine. I also left the rad cap off the radiator during idle and no air bubbles were showing (for 10 mins).
While idling everything seemed fine, no over temp indication on the cluster, however, the min I started moving the car out of the drive way, the cluster gauge started increasing till it went to full hot. in the mean time, my logs were showing a max of 206F at most.
Any other ideas?
Thanks
I think I am gonna try to replace the small TC toward the front of the Tstat and see if that fixes the issue. I believe it is the one feeding the gauge.
Update: I ended up buying the front sensor from Autozone for around $15, installed it, flushed the system, poured new coolant (50/50)...left the rad cap off....then let the car idle for 15mins while the heater is on....no issues at all.
went out logging for an hr or so...did probably 20 pulls....and no issues at all. Then came to a stop and all of the sudden my gauge went to full hot while my log is displaying 190-200F. Now I am leaning more toward an air pocket that didn't get to purge yet. Will do that tomorrow, and report back.
here is a pic of the sensor incase anyone needs it;
went out logging for an hr or so...did probably 20 pulls....and no issues at all. Then came to a stop and all of the sudden my gauge went to full hot while my log is displaying 190-200F. Now I am leaning more toward an air pocket that didn't get to purge yet. Will do that tomorrow, and report back.
here is a pic of the sensor incase anyone needs it;
Thread Starter
Newbie
Joined: Jun 2007
Posts: 58
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From: Rio Rancho
Sorry it's been a while that I haven't posted. I replaced that part. I took it to the shop it's called boosted inc. (http://www.boostincorporated.com/subaru/) it was at at the shop for about a month. They checked everything. Test drove my car, plugged in to the AEM. The gauge starts creeping up to high but when you see the graph on the AEM it shows normal. They think it would be the cluster that's doing it, maybe the wiring or grounding. What do you guys think?
Mishimoto thermostat
Do not use the Mishimoto Thermostat, it's made in China and not up to the same standard as the stock. I ran this on the track and it failed after 4 sessions.
The metal on the bottom busted.
The metal on the bottom busted.
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iTrader: (33)
Joined: Jul 2002
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From: Raleigh, Transplanted from Toronto, Canada
I currently have the exact same problem. Went with a better fan and it seemed to cure it for a while but now its back with a vengeance. Replacing sensor today. The temp needle on the gauge cluster wildly over reacts. At 212 it over 3/4's hot on the gauge.
Thread Starter
Newbie
Joined: Jun 2007
Posts: 58
Likes: 1
From: Rio Rancho
Thread Starter
Newbie
Joined: Jun 2007
Posts: 58
Likes: 1
From: Rio Rancho
What kind of fan should I order? My turbo kit came with the fan.
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iTrader: (33)
Joined: Jul 2002
Posts: 5,313
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From: Raleigh, Transplanted from Toronto, Canada
Justin @ Forcefed suggested I get a SPAL (Flexalite) 123 is what I used. It dropped my temps down below 200 and after wiring it up to run off switched power its stays under 180 unless its a really hot day and I run AC. I replaced the sensor and sending unit and itsno longer freaking out when the temps climb a bit. But then my car hasn't seen over 207 since we wired the fan's to run all the time.
To be fair the device I was using to monitor temps has been a little flakey as well so while I;m sure the car is running cool it will be a few weeks before my evo droid is here so I can take more accurate reliable readings.
To be fair the device I was using to monitor temps has been a little flakey as well so while I;m sure the car is running cool it will be a few weeks before my evo droid is here so I can take more accurate reliable readings.
Last edited by SmurfZilla; Aug 12, 2013 at 07:55 AM.