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Q: I have a 2020 Nissan Rogue. The first time I took it in for an oil adjust, the support office said I should really change the brake fluid. I’m from the older technology and recall changing the fluid only if you changed a brake portion and needed to insert fluid.
Do new cars definitely need brake fluid changed each and every 5,000 miles?
A: Thoroughly clean brake fluid is essential to a modern-day Ab muscles brake process. Nissan, Subaru and some other makers recommend brake fluid substitution every 30,000 miles.
At AAA, our engineering group has carried out some assessments and recommends a 30,000-mile replacement owing to moisture contamination.
If you are transforming the oil in your Nissan every 5,000 miles, changing the brake fluid at the sixth oil adjust would make feeling.
Q: My 1998 GMC Sierra defroster won’t blow warm plenty of to defrost the windshield. The motor was replaced with a new crate motor. I have experienced a few new heater cores set up (one particular is the manufacturing facility portion). I have also checked the vent process for right operation and obstructions 2 times. Incoming temp to the heater main is at the right specification.
When the truck was new, it blew a storm of hot air. Of program, these observations are from what I’ve been advised by “accredited” mechanics, and I have had it to additional than a single store. Any feelings?
A: In the scenario of this truck, the technique is quite uncomplicated. I would start out at the commencing. The thermostat must open up at 205 levels and close at 185 so the coolant temperature likely into the heater core should really be about that temperature.
The inlet and outlet heater core line temperatures really should be in just 10 to 20 levels of every other. This must translate into air duct temperatures around 150 degrees, which is additional than enough to defrost the windshield. I would also be wanting for sites wherever new air could be coming in, which would dilute the warmth.
Q: My old Dodge truck dies every single now and then for no cause. It will not begin, and the gauges really don’t do the job.
If I leave the important on and hold out for about 10 minutes the gauges start out to work and the motor will commence and operate for an mysterious sum of time. It really is under no circumstances the identical length of time perhaps 5 minutes, or it could be fine for four or 5 times.
I have replaced the crankshaft posture sensor and the motor relay. Each and every has served for a when, but it even now dies at random occasions.
Do you have any idea what may well be the bring about? Some say it really is the ECM (laptop or computer) or maybe the instrument cluster.
A: I would commence with locating, examining and cleaning all of the electrical grounds. Accomplishing a very simple voltage fall check may perhaps assist you track down the situation.
The other chance is a defective ignition change.
Relating to the vehicle’s laptop, you could try warming it up with a heat gun as properly as tapping it and shaking it. If you recognize any modify in engine operation, exchange the ECM.
Q: I have a 2012 Toyota Prius with extra than 100,000 miles. My mechanic employs synthetic oil for my oil improvements, proclaiming the Prius engine runs hotter. Is this right?
Next, I have recognized in fulfillment surveys operate by Purchaser Studies that Honda and Toyota have gone down from preceding a long time. Any rationalization for this?
A: Wanting at just the engine temperature, the Prius operates at the identical temperature as most inside combustion vehicles. Oil will begin to split down at temperatures previously mentioned 250 degrees.
Synthetic oil flows more quickly, lubricates superior and is much more resistant to chemical breakdown.
Considering that Toyota recommends oil alterations once a yr, or each and every 10,000 miles, spending the further cost for the advantages of synthetic oil is worthy of the income.
Concerning the excellent of Honda and Toyota products slipping, I think it is additional of a scenario that other companies have improved.
Honda and Toyota are continuously innovating and, with innovation, there can in some cases be top quality hiccups.
I recently experienced Mike Quincy of Client Experiences on my radio program to examine “top picks.” You can uncover the interview on johnfpaul.podbean.com.
John Paul is the AAA Northeast Car or truck Physician. He has extra than 40 many years of knowledge in the auto sector and is an ASE-Certified Grasp Technician. Create to John Paul, The Car or truck Doctor, at 110 Royal Minor Travel, Providence, RI 02904. Or email [email protected] and set “Car Doctor” in the matter field. Stick to him on Twitter @johnfpaul or on Fb.
