Overheating at Highway Speeds with A/C On

Yeah, what's with the "shaking"?... the steering wheel, or what.... that does not compute to overheating..!

 

sounds like the same type of idiots at Blue dog RV. I realize customer service is difficult but when theres major concerns like this they need to rectify the situation ASAP...

 

They changed the fan clutch when the problem is driving down the road at 70mph? Do they not understand how that stuff works?

They can't check anything until a component actually fails? That is the most ridiculous thing I have ever heard. I guess you should just blow up the engine next time.



I have a question. Does your problem only occur with the AC on? Runs happy as can be with it off?

 

It feels like a rough idle.

 

Only getting hot when the A/C is on. When it's off, it's fine.

 

Sometimes I wonder what the service techs even get told? When Im in one of those situations I think to myself what would they do in a situation like this? I know they prob wouldnt be to happy but yet the give out the "zero sense of urgency" vibe...Next time Im going to ask them specifically...so "what would you be doing if you were in my shoes?"

 

Trying to think of how the AC system interacts with the Engine.....

1. AC Compressor is putting too much load on the engine. (Not my first choice, but compressor issues, low compressor oil, Compressor clutch)
2. AC Condenser is running too hot (Something wrong with the AC oil or AC charge?)
3. Instrumentation Issue (check with a mechanical gauge or temp gun)
4. Anything restricting flow to the radiator and when the extra heat from the AC kicks in is overloading the cooling system?
5. Coolant level too low and the extra AC load pushes the system over the top.
6. Coolant vented properly?

 

Does the AC cool properly? Sounds like it did but maybe the added heat being strapped off of the AC cooler is affecting the radiator? or radiator fluid low...but the service techs should have figured that out by now. Also could be the coolant is not mixed properly...ie 100% coolant.

 

I've experienced a similar case with a valve cover gasket recently. My repair was supposedly under warranty as well. My 2nd Gen is well under the expiration mileage and time frame, but since the dealership could not duplicate the symptoms, they just sent me away. I specifically told the tech and service advisor to remove the spark plug closest to the firewall on the driver side to find oil on the threads. Shop foreman insists that's what they did, but I have trouble believing it because it would seem so obvious.

The warranty process can be so bureaucratic at times, that it's almost a joke. I understand that warranty work pays less, but it still needs to be done, especially if the customer properly documents proof of the problems. Simply sending the customer away then saying "come back when the symptoms show" is purely negligent on Toyota's/the dealership's end. Whether it be an overheating engine, or a minor leak in a valve cover gasket, a car under warranty deserves a proper diagnosis and repair if needed. It's a double edged sword when it comes to warranty work because high volume dealerships are the only options owners have; they have the parts and "expertise" but lacking quality of work and service at times, due to their volume. I have a case number with Toyota regarding my issue and am escalating it until this problem gets settled.

In the mean time, I've chosen to pay for the repair, and having my trusted mechanic work on it. I could do it myself, but I need to be at my desk job where I waste my lunch hour on Tacoma World. I've lost faith in the Toyota warranty and service. Hope they find what's wrong with the truck, and it's just the thermostat as guy said. It's shame you're not able to enjoy your Taco.

 

Drain your oil into a bucket, fire that bitch up, redline it till you hear bang, call dealer....now its fucked up, fix it dickheads.

Dont have the stugots to do it, call me, I got no problem with fucking shit up.

 

After thinking about it, 5 or 6 (which could be consider the same as 5) are probably my first choice. Easiest to check/miss.

I don't think you would have the problem with 100% coolant. You might if it was really hot outside as it doesn't cool as good as water, but in this situation, I don't think you'd see it.

 

Smitty's making believers out of some.................the tides have turned smitty you will be loved by all soon. Mr Ground Zero.........where all the problems started LOLOLOLOL.

 

Yep. Thats exactly what I suggested.

 

https://www.thirdgen.org/forums/tech-general-engine/26717-will-running-pure-antifreeze.html

I thought I read on the back of a gallon jug not to put 100% coolant, as it causes overheating?

 

I call it like I see it. I realize that just because MY truck has had more than a fair share of issues, it does not by itself mean Toyota's third gen is an across-the-board failure. With more and more people reporting similar issues as well as some fairly well "trusted" review sources citing the decline of reliability, I feel it lends some credence to the theory that the Third gen has been a bit of a step backwards from Toyota's history of releasing a "bulletproof" product.

 

You suggested draining the oil to make it fail. I hope you're kidding. That would be the biggest gift to the dealership!

 

How would that be...... when I put it back in after she detonates?

I dunno what happened??? Fix it. Call me when its done Mr. Dealership.

You're right though, it would be a gift to them, they wouldn't have to diagnose anything but an engine replacement.

 

I still think you're trolling but, bet my last dollar if engine fails they are gonna figure out why pretty quick. Overheating fucks the engine up top down, no oil fucks it up right in the block so yeah you do that and try putting the oil back in hahaha

 

its fun to joke about that but in reality getting caught up in fraud is no joke...

on the other hand...just let it overheat and keep driving it and it will blow up the engine eventually on its own...

 

I do not care what they figure out, or why. I did not do anything at all to it is my story......I was warming it up in my driveway ....and bang.... but its ok, I have a manufactuers warranty , and Toyota will replace it , regardless of any findings, you can bet on that.

Fraud...., nah.....manufacturer defect is what I say.....