Transmission temp gauge January 07, 2018, 04:15:41 pm Just installed this AutoMeter temp gauge in the Lazy Daze. There was a tach there before. Didn't need that. Need this though. For towing uphill on hot days especially.Anyone know the optimal working temp for a Ford E40D?I was told anything over 200°F is entering a danger zone.
Re: Transmission temp gauge Reply #1 – January 07, 2018, 08:28:27 pm Both my 1998 Class C and my 2005 Class C (both towing a 2500 lb trailer) ran at190-200 deg F (Scangauge reading) most of the time (summer use - cooler in the winter). Because the engine is water cooled and the transmission cooler is in the radiator, I'd expect the temperature to the same as the water temperature - 200 deg F. Long hills would raise the temperature a few degrees. I have no reason to think 200 deg is anywhere near stressing the transmission fluid, which remains clean and red for ten's of thousands of miles. The 1998 Class C went 180,000 miles with only a servo replacement in the transmission. We sold it because the engine began to blow out plugs. 1 Likes
Re: Transmission temp gauge Reply #2 – January 08, 2018, 02:23:53 am This is from the Ford Truck Enthusiast's Forum...Ford's standard is up to 220 is normal and you can run all day at that temp, and you can run up to 250 for up to 30min at a time. You should not exceed 250 if at all possible as there are some internal components that dont like to behave properly above 250.The newer trans tend to run warmer than the E40D. If my water temp is at 206, so is the tranny or close to it. There is a long pull heading east from Barstow to Las Vegas, on a hot day I think I saw my tranny temp around 210F. That's about the warmest its been, and its a E40D.Chuck 1 Likes
Re: Transmission temp gauge Reply #3 – January 08, 2018, 03:31:11 am When I had John Wood rebuild the 4L100 transmission, in our 2003 LD, I asked him what he felt the ideal temperature range was. He responded that 180-210 was ideal. On our summer trips, occasional highs of 230 are seen, on long, hard upgrades and temps in the 100+ range.This is fine for short periods. Most of the the time the transmission temp is close to the coolant temp or lower, as seen on the ScanGauge. The 4L100 has a temperature sensor and a high temp alarm light, it goes on when the temps reach the 250 range.With the extra large transmission cooler and radiator water sprayer, this summer's highs were lower than in the past.Larger transmission cooler E450 | FlickrLarry 1 Likes
Re: Transmission temp gauge Reply #4 – January 08, 2018, 07:01:23 am And synthetic ATF is a better choice than dino when it comes to handling high temperature.
Re: Transmission temp gauge Reply #5 – January 08, 2018, 02:12:04 pm I’m thinking about adding a ScanGague to my ‘12 but wondering where best to mount it.
Re: Transmission temp gauge Reply #6 – January 08, 2018, 02:53:45 pm Quote from: dollinsdale - January 08, 2018, 02:12:04 pmI’m thinking about adding a ScanGague to my ‘12 but wondering where best to mount it.Our ScanGauge is sitting on top of the shift column. It's easy to see in the shaded area.Others mount them on the dash, directly above the steering wheel. This location can be harder to see under certain light conditions.The ScanGauge's cord is long, try sitting it all the possible positions, before securing it.I use sticky-back velcro to mount ScanGauges.Larry 1 Likes
Re: Transmission temp gauge Reply #7 – January 08, 2018, 03:43:55 pm You might want to investigate the 'Ultra Gauge' instead of the Scan Gauge... better visibility is the issue. 1 Likes
Re: Transmission temp gauge Reply #8 – January 10, 2018, 11:19:49 am We have the ultra gauge mounted with the suction cup and flexable arm mounting which they sell. We have it attached to the windscreen and above the dash on the far left side. With the ultra gauge visibility has never been an issue and the suction cup mounting is still going strong after almost two years. Karen~Liam 26 ~ MB
Re: Transmission temp gauge Reply #9 – January 10, 2018, 11:30:16 am Both of my Jeeps have gifted Ultra Gauges, from folks who were tired of the programming difficulties, lack of transmission temperature readout and the occasional blank face. I agree with their opinion. The Ultra Gauge does offer a huge range of programming possibilities, most of which I'm not interested in. I have had problems with the alarms, having several false alerts.I really just want to see a few temperature readouts (coolant, transmission, intake temp) and voltage. I don't want or need to be scrolling thru the Ultra Gauges many possible screens, while driving.It's been my experience, from running both brands in our LD, that the ScanGauge is more stable and easier to use. I have no issues with the visibility, with it sitting on the LD's steering column. If i do want to use a different function, the ScanGauge's buttons are on the face and are easy to see and press, as opposed to the Ultra Gauge's buttons, hidden out of sight on the back of the Ultra Gauge.The faces Ultra Gauge and ScanGauge are very different and one style may be easier to see, depending on your eye'sIt's definitely a case of YMMV.Either way, it's a good thing to have the actual OBDII readouts available. I do wish OBDII monitored the oil and fuel pressures.Larry 1 Likes
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Topic: Transmission temp gauge (Read 310 times)
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