Potentially Dangerous High Engine Rev

[RR - All the way]

Reinforces my love for my EB. Nuff Said!!!!

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[jcs]

Reinforces my love for my EB. Nuff Said!!!!

Id still take the 42 mpgs on my Hybrid than an EB any day

 

[icegradner]

Toyota ended up in lawsuits & ended up paying over $1billion for the “floor mat” problem - because it was more than just the floor mat. Their reputation suffered a bunch too.

The Toyota also had a “sticky” accelerator pedal issue that contributed to the unintended acceleration.

Again, I imagine the Hybrid does not suffer from a floor mat/pedal issue. But unintended acceleration is a seriously dangerous & costly situation if not handled correctly.

Especially if Ford has been aware of issue for years. The OP is thinking of contacting an attorney. Maybe GM or Toyota or Slate will make a referral?

The thing is, there is no unintended acceleration happening. It just feels like the engine is pushing and has a surging feel to it while it revs high to warm everything up. Holding the brake overcomes the problem. All modern cars are designed so that the brake overrides throttle input, all dating back to the Toyota issue you have talked about.

Unless there is a software malfunction in the OPs vehicle, it should not be something worthy of any kind of lawsuit. Unlike traditional ICE vehicles, eCVT vehicles have to be programmed to mimick the behaviour of a traditional automatic to roll forward when not on the brake. It would have to be a bug for it to exceed a simple roll.

 

[Master Blaster]

Do you have a nearly-dead 12v battery and the engine is moved into max recharge mode?

 

[Chops]

eCVT vehicles have to be programmed to mimick the behaviour of a traditional automatic to roll forward when not on the brake.

Someone needs to tell the programmer NOT to rev the engine while in gear?

A traditional automatic stays in a low idle - barely enough to keep the engine from stalling. Brakes can easily hold, although it wastes a bit of gas.

So there is programming to turn off the engine after coming to a stop.
The “Start/Stop” feature can be annoying. A “Stop/Rev” feature is not only dangerous but wastes gas.

 

[TheSEARCH]

I have a 23 xlt hybrid same as OP. In Buffalo NY so its cold. Never has this happened to me. Full throttle in idle,, really ? I would imagine the engine would rev so high to over its rpm limit..... Does mine go up?, sure maybe 1500 rpm. my guess.

Things I noticed its in park or neutral. The throttle does pretty much NOTHING. I step on throttle but rpm does NOT rev up like a regular gas engine. it ignores my throttle input. Again in park or neutral. NOT in drive.

If it is really going 4000 rpm or higher on its own it is NOT normal.

 

[Chops]

The eCVT should be programmed to “shift” into Neutral if it is going to rev the engine while stationary. Like a manual transmission…

Or the Hybrid Brake System should be programmed to overly offset the added force of applying gas while in gear…

 

[Robot-Wrangler]

Hi all,

I'm trying to see whether anyone else has experienced this issue with their Hybrid Maverick. I drive a 2023 Hybrid XLT.

Last week I started my car on a cold day, with the heat dial turned to full blast, and when the car started, it immediately turned on the ICE engine, as should be expected, to warm up the coolant going to the heater core. Except, this time, when it turned on the engine revved to 100%, as if I had the gas pedal to the floor. I immediately shut off the car before doing anything else to make sure it wasn't jammed under my floor mats. It was not. I have WeatherTech type hard floor mats, and there was/always is a ton of clearance between the pedal and the floor mat itself.

Fast forward to today. I was picking up my son from school, and once we got in the car, I put it in drive (again, on a cold day) and the ICE quickly switched on after I crept forward a bit, and before I could even put my foot on the gas, the ICE went full throttle and tried to accelerate accordingly. I immediately shut off the car to stop it while still rolling. I again checked the pedal to make sure it wasn't jammed under the mats. It was not. A minute or so later I started it back up, put it in drive, and it happened again. No check engine lights came on or anything.

I've also experienced issues with the car trying to "lurch" or "lunge" past the brakes while the ICE is running when stopped at red lights. The dealership claims they couldn't replicate the issue, and said that because, again, no check engine light came on, and there were no codes, so they said they couldn't escalate the issue to Ford Motor Company.

Another potentially safety-related problematic issue I've had since the car was new is that the whole car often shakes/shudders when stopping, particularly if I have to brake hard, and sometimes when I'm stopping hard over bumps, it even disengages the brakes if I hit a bump while braking.

None of these issues throw codes, so the dealership says they can't do anything to help me.

At this point I don't think the car is safe to drive, and I'm considering calling an attorney, but because there's no replication of the issues with the dealership, I don't know what kind of recouse I have. That said, I have two kids, and I drive a lot for work, but with all these issues over the past two years, I don't feel safe driving it anymore.

Has anyone else experienced these issues?

Invest in an onboard camera and when a malfunction occurs save the recording for evidence.

 

[Robot-Wrangler]

Be sure to file a report with the NH TSA

 

[HeyBales]

Someone needs to tell the programmer NOT to rev the engine while in gear?

A traditional automatic stays in a low idle - barely enough to keep the engine from stalling. Brakes can easily hold, although it wastes a bit of gas.

So there is programming to turn off the engine after coming to a stop.
The “Start/Stop” feature can be annoying. A “Stop/Rev” feature is not only dangerous but wastes gas.

Here's the thing though for the hybrid doing this - that high ICE RPM doesn't translate to anything at the wheels until the Generator Motor changes it's spin to supply the desired power via gearing change basically. Rather instantly.

On initial cold start and ICE is higher RPM (not sure what OP is using to decide full throttle), there is actually no ICE power used to the wheels - the gearing leaves it out of the picture by the GM spinning enough to cancel it out.
The Traction Motor is used until the CAT is at 1000 F. Less than 60 sec I've noticed.
Then the system slowly starts using more of the ICE power and less of the TM, normal usage happens at 120 F coolant temp.
Now - obviously if low HVB and you just punch the go pedal - ICE will be used.
And as hard on the ICE as punching the gas pedal on any car before warmup.

So unless there is some major malfunction, being in D, N, R, or P doesn't matter.

Even with ICE running in P or N - you have to press the Go pedal to about 75-80% to even rev above the selected RPM's.
And if brakes are engaged in R or D, barely any TM power is used for the "creep".

 

[icegradner]

Someone needs to tell the programmer NOT to rev the engine while in gear?

A traditional automatic stays in a low idle - barely enough to keep the engine from stalling. Brakes can easily hold, although it wastes a bit of gas.

So there is programming to turn off the engine after coming to a stop.
The “Start/Stop” feature can be annoying. A “Stop/Rev” feature is not only dangerous but wastes gas.

I explained this behavior in my first post. It’s doing it to get the ICE and catalytic converters to operating temperature as quickly as possible. Why? To reduce emissions and toxins in the burnt fuel. Since the ICE can be off a lot on the hybrid it is necessary. It only does this during the warm up phase.

Start stop on the hybrid is nothing like your EB.

 

[icegradner]

I have a 23 xlt hybrid same as OP. In Buffalo NY so its cold. Never has this happened to me. Full throttle in idle,, really ? I would imagine the engine would rev so high to over its rpm limit..... Does mine go up?, sure maybe 1500 rpm. my guess.

Things I noticed its in park or neutral. The throttle does pretty much NOTHING. I step on throttle but rpm does NOT rev up like a regular gas engine. it ignores my throttle input. Again in park or neutral. NOT in drive.

If it is really going 4000 rpm or higher on its own it is NOT normal.

Do you remote start your truck in winter and let it warm up for 5-10 minutes before leaving? If so, you won’t experience this.

 

[HeyBales]

Is this 100% on the Power Meter?

Full heat (HI level) and fan and cold coolant will engage the PCT heaters which require the ICE running and power from HVB, and if HVB was down close to 30% point already - ICE is running faster.

The braking hard and a shudder has happened to me when I'm close to a stop and been riding regen for awhile and HVB is maxed out at abouts 70%.
And the timing is just such that the pads are being engaged at that 8mph and below, and the ICE is being spun up for wasting some regen power that can't go to the HVB, right when I'm about stopped and it's unneeded now.

My downhill to morning highway usually will cause this bad set of timing on reliable basis.

If the hill was steeper such I needed to dig into the pads and lose some Regen power to heat instead - might not happen - or it would actually probably happen sooner instead of during final slow braking.

 

[Meeka]

Id still take the 42 mpgs on my Hybrid than an EB any day

I dunno, I’ve been on MTC for just over a year now and from the majority of posts with truck problems, it’s been hybrids. That’s just my opinion, let’s not all go off the handle please! I didn’t purchase my 24 EcoBoost turbo for 100 MPG, I bought it for a more fun, useful vehicle for my taste. As long as everyone loves their Mav, that’s all that matters.

 

[Chops]

Start stop on the hybrid is nothing like your EB.

Yes, the EB stop/start will not start until you lift your foot off the brake.

Seems the Hybrid stop/start can start with your foot still on the brake at a stoplight. Crazy.

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