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2022-06-04 -Short Attention Span Theater-

NHTSA investigates Ford Bronco 'catastrophic engine failure' reports

[Auto Blog] Ford's sixth-generation Bronco is under investigation by the National Highway Traffic Safety Administration (NHTSA) over reports of "catastrophic engine failure." The federal agency wrote that it has received three petitions requesting a probe into the alleged problem.

Assigned NHTSA action number DP22001, the investigation stems from petitions that claim some Bronco models powered by the 2.7-liter EcoBoost V6 suffer from a valvetrain-related problem that manifests as a loss of power at highway speeds. Starting the engine is then reportedly impossible due to what is described as "a catastrophic engine failure." There's no mention of precisely which component fails.

"This defect petition has been opened to evaluate the issue and determine whether to grant or deny the petitions," the NHTSA wrote on its website. That means the investigation is not a recall, does not force Ford to issue a recall, and does not acknowledge an issue with the V6.

Enthusiast forum Bronco6G has been documenting cases of engine failures since Bronco deliveries began; as of writing, 50 of its members have reportedly experienced the issue described in the NHTSA's documents. Some describe it as a dropped valve, a problem which usually damages the cylinder and the head, and many of the affected SUVs have received a new engine. Ford said that it's aware of the issue.

"We are aware of a select number of engines with this concern and we are investigating. If any customers are experiencing issues, they will be covered under the vehicle's five-year, 60,000-mile powertrain warranty," a spokesperson for the Blue Oval told The Drive in April 2022.

Posted by Besoeker 2022-06-04 07:23|| || Front Page|| [11135 views ] Top

#1 Yes, your vacation trip may end rather abruptly and with little warning.

Broken Valve Springs

Broken or weak valve springs in an engine can cause many different drivability and performance problems. Broken valve springs cause excessive valve noise, compression loss and can cause severe internal engine damage. The actual breaking of the valve springs is not always the most serious consequence. Actions following the breaking cause the most serious damage to the engine. When spring breaks, it may collapse just enough to allow the valve to drop into the cylinder, where the piston may strike it. In addition, the valve stem locks or keepers may release the valve and allow it to drop into the cylinder, causing severe damage to the piston, cylinder head, and other nearby parts.

Link

Posted by Besoeker 2022-06-04 07:39|| 2022-06-04 07:39|| Front Page Top

#2 The Ford 2.7L Turbo 'Nano' failures seems to have an engine build date range as shown here.

The first generation of these engines were also problematic, but worst issue seemed to have been a leaky oil pan. I'd prefer that to a sucked valve.

Posted by Mullah Richard 2022-06-04 08:36|| 2022-06-04 08:36|| Front Page Top

#3 Never buy Version 1.0, as they say...

Posted by M. Murcek 2022-06-04 09:24|| 2022-06-04 09:24|| Front Page Top

#4 So that goes off the manual transmission list.

Posted by swksvolFF 2022-06-04 10:20|| 2022-06-04 10:20|| Front Page Top

#5 After 100 years or so of combustion engine design and manufacturing, one would think engine valve problems might have been overcome.

Posted by Besoeker 2022-06-04 11:19|| 2022-06-04 11:19|| Front Page Top

#6 I would expect redline+ over revving to get more torque out of that tiny engine as the cause.

Posted by Skidmark 2022-06-04 11:46|| 2022-06-04 11:46|| Front Page Top

#7 Ford's remedy.... Don't drive on the highway.

Posted by Slappy 2022-06-04 13:00|| 2022-06-04 13:00|| Front Page Top

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