Water alone won't work; it will freeze too quickly. Yes this is normal, Your LS engine is a very tight tolerance engine. I logged coolant temp vs fuel trims and noticed that the car was running lean during warm up, but once up to temp the trims were great. P0128 Coolant Temp Below Themostat Threshold Details Check Engine Light Repair and Diagnostic Help. Ran down the highway about 50-60 miles per hour for about 4 minutes.. Coolant temp fluctuated between roughly 195 and 206 ( 206 when I punched it).. Is this pretty normal? For coolant temps, the stock ECU looks for a temp range of 176-210 deg F. Anything above 210* the ECU begins to pull timing, below 176, ECU will be in open loop mode and run rich, so keeping within these ranges is vital to performance. Cloudflare Ray ID: 6271ce963bc81ab4 195-200 is ideal temp for efficient combustion and it evaporates any moisture / condensation from crankcase. Please enable Cookies and reload the page. A cold car's coolant temperature matches the outside temperature, so I assume the sensor is doing good. Follow answered Dec 27 … You should use 50/50 coolant, premix is much easier but you can mix yourself if you like. I've been seeing steady temps as high as 220-223*. A little above 200 degrees. You can do that, but it’s not a very accurate test. I have a new degas bottle arriving tomorrow to put in the excursion and hopefully stop the leaks to get a good pressure reading on the system. Under the number 3 intake runner (passenger side) it's gonna be under and to the left of the large wire harness loom. But, when I'm Idling for more than 10 mins, at around zero degrees ferinheit, the coolant temp drops to around 155-165. Seriously. In normal circumstances, the coolant gets ousted out from the reservoir overflow tube, the moment the engine starts warming up. feel both radiator hoses or use a temp gun on them. Normal coasting down the hill temp is about 175, normal flat driving temps are about 195. On the td04 avg. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. Could be time for a new thermostat if the gauge drops below normal towards cold mark when going down hill. ah, good point, I didn't replace the thermostat. Ambient temp was 100-103, coolant temp stayed below 200 the whole time, where I was seeing as high as 207-208 before the repair. I stayed in 1st and 2nd around the parking lot and after about a 5 min ride the temp was just starting to hit the upper middle temp line. I noticed my temp gauge was at 3/4 of the way while driving, when I stopped the gauge went down one small bar above normal temps, i turned the car off to let it cool down a bit. Oil temp is 200. Seems like the engine keeps cool enough without the radiator even. This wouldn't concern me very much, but when the coolant temp is that low, I can feel the difference in cabin temp quite a bit. This is fine, it is meant to run at this temp. This input is used by the powertrain control module (PCM) for engine control and as an enabling criteria for some diagnostics. Just did a vf39 swap and loss coolant so I added some but probably didn't burped it fully and its a little hot ~208 peak on my Cobb AP. (Start to open at 178-182, fully open at 203). Coolant with a 50/50 mix of water and ethylene alcohol (anti-freeze) can function at temperatuares as cold as negative 36 degrees Fahrenheit. / 7MT / Navigation … 62----- 1205 The temp drops radically during higher rpm driving (hard acceleration) but during normal cruise rpm the temp creeps up to about 94c. Normal coolant temp is 86-92 (fans cut in at 94) This leakage is visible and may result from bad reservoir cap. The upper end of the stock gauge is approx 230 deg actual coolant temp...once it gets to the top of the gauge its closer to 240 deg. There is a coolant additive you are supposed to add when you drain/refill. I will see how it acts on the trip home this afternoon. I doubt the water pump is bad, I think they have metal impellers so they usually don't break into pieces. PO117 Engine Coolant Temperature Circut Low Input. since you got a new radiator we will rule out that you have a plugged tank on the radiator. The coolant mixture and 15 lb pressure cap raise the boiling point to approx. I was hoping to see 185-190 temp but I think it’s in line with the oem thermostat spec. Subaru 2.5L engines have a mixed history of cooling, head gasket and oil leaks. To be sure call the dealer as I don't have an 04 let alone STI. It requires synthetic oil(5W-30) so that it will return to the pan fast enough to keep the pick-up sump from going dry.The engine makes more power and gets better mileage at 198-220 deg. There are specific ways to test a Subaru 2.5L engine for leaks, and not all testing methods provide reliable results. • 2004 FXT auto 70k miles Stock thermostat, stock water pump, no HG done yet. Lol, I swear I searched normal temps on here. 2007 Subaru Impreza WRX STI Limited 4 Cyl 2.5L Coolant Temp Sensor Product Details Warranty : 1-year limited warranty Anticipated Ship Out Time : 1-2 Business Days Quantity Sold : Sold individually I was just tracking my car in 100f weather with the mishimoto radiator and oil cooler. What's your normal coolant temp with the car fully warmed up, driving at 70mph down the highway? • Hi guys, so I came across an issue yesterday on my 2016 wrx sti with 26k miles. Reburped it and Hwy= 181-194 181 seems awfully low. When diagnosing any coolant temperature problem the first thing you need to do is make sure the cooling system is operating properly and the vehicle is running at a normal operating temperature. I have once the temp reaches normal my heater in the car works great. 260 degrees. Coolant temp ideal, is 180 to 190. http://forums.nasioc.com/forums/show....php?t=1929262. I don't believe Subaru has ever used anything but normal coolant. Many inexpensive shop manuals tell you to test an engine coolant temperature sensor using an ohmmeter. ... Past: 06 Subaru WRx STI 94 Acura Integra GSR. If it continues to go up, you should start looking into things. An engine coolant temperature (ECT) sensor monitors the temperature of the coolant. The data sheet for the coolant should have a curve for different concentrations and pressures (although 50/50 and 15 PSIG is very standard). There are two sensors there. If the gauge is a pointer width higher, it's already over 212 F, and the fans should be on. My coolant barely went over 200 and my oil got to 230-240 before I went for cool down laps. There may be some hoses and wires in the way. The oil temp generally maxes out around 210 give or take a degree or two. Another way to prevent getting this page in the future is to use Privacy Pass. I have a Scangauge hooked up to my '14 Forester mainly to monitor the coolant and I have found that the coolant temp generally goes up to about 191 - 193 degrees. While driving, my car's normal operating temp is around 185-195 according to my engine link app. Normal operating temperatures for a VW diesels are in the range of 170° F to 210° F with the thermostat set to open around 190° F. Go through maintenance tips for consequences of the overfilled coolant reservoir. I recently noticed on my truck that my oil temp was running high, I would go down the interstate at 75 mph and the oil temp would get up to 215-218 while my coolant temp would sit around 192-196. And, normal operating temp should be around 200 for both coolant and oil. Already checked all of the obvious things. New 2014, normal coolant temp? The temp "needle", stays at mid point, doesn't really move, but, with previous cars, it seems if the needle moves to the higher side, somethings wrong, its kind of like the oil light, when it comes on its already to late. You should be letting it get up to that temp before spirited driving. I have a gauge reading the obd2 coolant temp, from my general reading (especially in our current weather - winter) mid to low 80c is normal during high way drive (100km/h) but my car is reading about 94c. Coolant temp sensor is on the coolant crossover pipe under the intake manifold. Performance & security by Cloudflare, Please complete the security check to access. I haven't paid close attention to my normal coolant temps until recently. Your IP: 149.28.141.51 Improve this answer. Test coolant sensor ohms or voltage? The temp gauge floated up and down slightly during my drive home, but then it shot almost all the way up to 'H' after I turned onto my street and drove "up the hill" to my house. I also monitored the temp as it warmed up, and then I took it for a quick spin to see if the problem had resolved itself. This was not accompanied by a check engine light. The odd thing is that if the car is started from cold, allowed to sit for 20mins it gets up to normal temp (assuming normal temp) just above the 1/3 mark and holds steady. warm up the car. Oil is suppose to be within 200-220 deg. The coolant temp gauge in my WRX jumped nearly up the 'H' during my commute home on Friday. 40----- 2275. I've also been running a bit leaner than normal at 15.3 during those speeds. 1LT Coupe / Crystal Red / Black Int. See the diagram below for where to test voltage. Sent from AutoGuide.com Free App Hmmm, I think the ideal coolant temp is around 200F plus/minus a couple degrees. Anyway, here are the results for anyone in future that might need a rough reference for this style of coolant temp sensor--average of two sensors (with help from my freezer and microwave): Temp Degrees F. Ave resistance (ohms) 10----- 7370. If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. This article will explain some basic testing procedures and common fixes for problems with the coolant gauge. (car is 5 years old, but military guy owned it, only has 26K on it, sat in storage a lot). One really hot days idling in traffic with a/c on, if the temp stabilizes at just under 100 degrees Celsius that's ok. F. for oil temps, anything above that is just wrong and your hurting your engine. You may need to download version 2.0 now from the Chrome Web Store. I plugged my errors in the SD coolant temp comp tables and the car now warms up like a champ with tight fuel trims. Hi everyone, new to the group here. However, My coolant temp never exceeded 192 with oil not over 201 and my fan clutch never engaged, not even with the AC on or even at a traffic light. Most pro’s test actual voltage coming out of the engine coolant temperature sensor. Share. Subaru, among others, builds a "flat zone" into the way the temperature gauge pointer works, basically keeping the pointer at 9 o'clock (or a tiny bit below) when the coolant temperature is in the normal range, namely 85 to 100°C (158 to 212°F). Checked coolant levels and topped off, fixed minor leak, burped the system, new radiator caps and still have issues. Thanks for the suggestions though. I don't need help trouble shooting my cooling system. If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. Normal oil temp is 60-70 degrees driving on the street. if one is cold and one is hot its mostly likely a t-stat, double check you get all the air of the cooling system. It can get that hot during the bleeding process but should quickly cool down as coolant is added to replace the air. For example in 98 degrees F, in one specific instance, with the A/C set to 62 degrees, the Accesport showed a coolant temp of 221, and the gauge in the gauge cluster never budged from its normal, middle tick mark.