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Recent Thermostat questions

My 1999 Toyota Tacoma V6 is randomly over-heating for no

My 1999 Toyota Tacoma V6 is randomly over-heating for no apparent reason. I replaced the thermostat & it didn't help.JA: Are you fixing your Tacoma yourself? What have you tried so far?Customer: Yes. Replaced thermostat.JA: Anything else you want the mechanic to know before I connect you?Customer: Not that I can think of.

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Ted Ritter

Team Leader/toyota master tech/retired

High School or GED

5,380 satisfied customers
I have a 2002 Toyota 4runner SR5 6-cyl 4.0L 2WD, for less

I have a 2002 Toyota 4runner SR5 6-cyl 4.0L 2WD, for less than a week the temperature gauge is acting weird. Last Wednesday I drove it for a few miles and the gauge needle was steady, normal, then suddenly in a few seconds went up close to the higher level, came down a little bit, then little by little was climbing up, I turned off the AC, and at the first chance I completely stopped, and let the truck run on idle, for a few seconds, it came down slowly.I checked the coolant, it was a bit low but nothing bad, not even below the lower line.I drove it again, his time I took it into a highway, I wasn't speeding more than 60 MPH, all the time watching the needle, whenever I saw it going up again, I decelerate or turn on the heat on max. position, which sometimes worked good. I drove it for about 14 miles and I stopped to check the coolant, it was the same, nothing was out of the normal on the engine, not strange noises, and I didn't feel it overheated, I added some coolant though, I drove it about 3 more miles on the city, same thing, going up, down... I parked and I didn't moved it.Last Friday I replaced the thermostat and drove it a couple days on short trips, it seemed fixed, although yesterday I drove it for about 4 miles, I parked outside of a store, I let run with the AC running since my wife stayed in the car with a Dog, she was paying attention to the gauge and suddenly she turned it off when the needle went up again.I drove it in my way back and I saw the needle playing the up and down again, having the heater or the AC on seemed like didn't make a difference.I have read multiple things that can cause this behavior, but before start replacing parts I need an advice from somebody who knows about 4runners and this behavior.I appreciate your help.JA: Do you have the trouble code? Do you have a code reader or scan tool?Customer: I can get it in a few minutes...JA: I'll pass this info along to the Toyota Mechanic so that he can get you a quick fix. Are you fixing your 4Runner yourself? What have you tried so far?Customer: I've been fixing my cars lately over the weekends, sometimes with mechanic coworker advises, but I recently changed job, I decide to have a full time adviser and I'll work on my cars if is something I can do.JA: Anything else you want the mechanic to know before I connect you?Customer: I have three codes, but these codes came out over a month ago, and the overheating just started last week. I only have replaced the thermostat

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Toyota Service

Toyota Dealership Service & CR Manager

7,692 satisfied customers
I have a 2007 Toyota Camry SE 3.5L. I replaced my alternator

I have a 2007 Toyota Camry SE 3.5L. I replaced my alternator within the past year that was described as a 4.5 hour labor work job. I now have to change my water pump that also requires the same amount of work hours because of them being in the same area.I want to minimize my maintenance cost by addressing any other issues that occur in this area by addressing them now when I have the opportunity. I plan to replace the water pump along with the tensioner, and serpentine belt.Questions: Is it unnecessary for me to replace the tensioner assembly? Is this a usual maintenance component? Are there any other parts I can replace while I have the area exposed during my water pump replacement?

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Ron Z.

Vocational, Technical or Trade Scho

24,322 satisfied customers
Overheating and fans not operating, Coolant was very low, no

Overheating and fans not operatingJA: Have you checked the coolant? Have you checked for a leak in the cooling system?Customer: Coolant was very low, no leaksJA: What is the model/year of your Toyota?Customer: Avalon XLS, 2002JA: Are you fixing your Avalon yourself? What have you tried so far?Customer: Trying to fix myself, replaced coolant. Restarted car and temperature gauge rising and fans not coming on. Turned car off.JA: Anything else you want the mechanic to know before I connect you?Customer: Relays look clean, thermostat cap rubber missing

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Toyota Service

Toyota Dealership Service & CR Manager

7,692 satisfied customers
Just before shifting at about 4500 rpm i get a ticking, and

just before shifting at about 4500 rpm i get a ticking, and feel like i am loosing hp.JA: Where exactly do you think the noise is coming from? And how long has this been going on?Customer: i think under the hood.about a weekJA: What is the model/year of your Toyota?Customer: 2008 tacoma reg cab 5speed manJA: Are you fixing your Tacoma yourself? What have you tried so far?Customer: it all depends, i dont know what the problem isJA: Anything else you want the mechanic to know before I connect you?Customer: no

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Chris (aka-Moose)

Vocational, Technical or Trade School

56,960 satisfied customers
My 2006 Sienna has no heat this morning. I work on older

Hello, my 2006 Sienna has no heat this morning. I work on older cars all the time. Mostly Ford. I don't think it's any of the servos. The engine seems to be running normal temp. I don't think its the thermostatJA: Have you checked the coolant level? Has there been any leaking from the hoses?Customer: the level is fineJA: Are you fixing your Sienna yourself? What have you tried so far?Customer: the front and rear heat are luke warm seems to be slightly warmer on the passenger side up frontJA: Anything else you want the mechanic to know before I connect you?Customer: Not at the moment

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1,652 satisfied customers
I have a 2009 Toyota Venza, the alternator was replaced 2

I have a 2009 Toyota Venza, the alternator was replaced 2 weeks ago and now the heater is not properly working. It has to be cranked up to 82 degrees for it to start blowing warm air. Before the alternator - warm was at 72 degrees. We have filled up the antifreeze reserve - took it back to the repair shop to make sure all the cables and hoses were hooked up. He showed us how to use the heater - they said it was working fine. We've had the car now 8 years - I now how to use the heater.

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1,652 satisfied customers
I had the check engine light come on wit has a cylinder 2

I had the check engine light come on wit has a cylinder 2 misfire and bad catalytic converter. I replaced the spark plug coil and cat which seemed to finally turn off for the check engine light after reset. Well now the car is over heating and the check engine light came back on. I'm lost for words on this one. Any help would be greatly appreciatedJA: Does the light stay on, or does it blink?Customer: It was blinking before the cat spark plug and coil... now I belive it stayed on. I quickly shut the car off after I noticed it redlined on hotJA: What is the model/year of your Toyota?Customer: 2012 hylander limited 4wdJA: Are you fixing your vehicle yourself? What have you tried so far?Customer: I replaced the plug and coils myself. The cat was done at a muffler shopJA: Anything else you want the mechanic to know before I connect you?Customer: No that's it

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Jared D

Shop Supervisor

Bachelor's

3,142 satisfied customers
When replacing the battery, the terminals were placed

when replacing the battery, the terminals were placed improper and there was a spark, now the car runs but no electricity to the windows, locks, mirros, radio, gaugesJA: Is this your first time dealing with this issue?Customer: yesJA: What is the model/year of your Toyota?Customer: 98 camry le v4JA: Are you fixing your Camry yourself? What have you tried so far?Customer: yes. I've checked a couple fuses, but that's allJA: Anything else you want the mechanic to know before I connect you?Customer: no, just need help finding what relay or fuse blew out

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Chad Farhat

Owner

Associate Degree

6,146 satisfied customers
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