Check the bleeder valve. If you suspect a bad caliper, it may be an issue with sticky/seized piston(s), but don’t jump to that conclusion right off the bat.
If the MIL is on with DTC P2798 on a 2017 Chevy Bolt EV vehicles, the cause may be damaged wire insulation resulting in a short to ground or corrosion in the line to the G5 transmission fluid pump harness.
Some 2017-2019 Toyota Tacoma trucks equipped with the BD20 differential (non-TRD) may exhibit a noise or vibration from the rear at low speeds or while braking. This may be caused by excessive clearance between the brake drum and axle drum flange.
This bulletin applies to 2004-2009 and 2010-2015 Toyota 4Runner vehicles equipped with part time 4WD. A cyclical groaning/grinding noise may be heard at the front differential when in 2WD that goes away when placed in 4WD.
Some 2017 Ford F-150 trucks equipped with a 3.5L GTDI engine may exhibit a MIL on with DTC P164C (internal control module start-stop performance) stored in the PCM.
Some 2011-2012 Ford F-Super Duty vehicles equipped with a 6.7L diesel engine built on or before Feb. 12, 2012, may exhibit a run-rough and/or misfire concern with or without DTCs P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307 and P0308.
The park assist feature of some 2009 GM models — including Buicks, Cadillacs, Chevys, GMCs and the Saturn Outlook — may not be operative, and the vehicles may be showing messages that indicate a problem.
2014-2015 Ram Pro Master vehicles are equipped with a spare tire winch. The customer may complain about a squeak noise at the rear, and/or being unable to lower or raise the spare tire/wheel.
Some 2011-2016 Ford F-Super Duty trucks equipped with a 6.7L diesel engine may exhibit a fuel knock noise at idle, an illuminated MIL and one or more of nearly two dozen DTCs.
Some customers driving a 2015-2018 Chevy Silverado may comment on a surging condition that is felt when driving. During diagnosis, the technician may determine this as a torque converter shudder. This condition may be caused by additives in the transmission fluid that may have depleted during vehicle operation. Some of these additives assist with regulating a consistent slip rate of the clutches.
This bulletin applies to 2014-2016 Jeep Cherokee vehicles equipped with a 2.4L I4 Multiair engine and built on or before July 26, 2016. The customer may describe a slight engine compartment noise. This may be at the purge control valve area.
The spark plug has a straightforward job to do. It’s responsible for igniting the air/fuel mixture in the engine’s combustion chamber initiating the power stroke. But this task is far from simple. The spark plug’s operating environment is extreme with combustion temperatures reaching 1500 F and peak cylinder pressure reaching 1,000 psi or more.
Certain 2015 Cadillac Escalade and Escalade ESV vehicles equipped with a 6.2L engine and 8-speed automatic transmission may have a condition in which the U-joint retainer bolts lose index.
This bulletin applies to 2014-2019 Chevrolet Corvette and 2016-2019 Camaro vehicles equipped with a 6.2L LT1/LT4 engine. You may find a DTC P06DD set in addition to no or low oil pressure.
A small internal brake fluid leak inside the brake booster assembly may be causing the brake, ABS and/or TRAC warning lights to illuminate on some 2011-2015 Toyota Prius and 2012-2015 Prius Plug-in Hybrid vehicles.
Some 2015 Ford Escape vehicles built on Oct. 1, 2014, through Nov. 30, 2014, may exhibit a no-crank condition along with other inoperative electrical systems. Check the 12-volt battery for loose, damaged or corroded connections. Check battery state of charge.
Some 2003-2012 Toyota 4Runner, 2007-2012 FJ Cruiser and 2005-2012 Tacoma vehicles equipped with part-time 4WD may exhibit a flashing 4WD indicator light and inoperative 4WD system. Look to the A.D.D. (automatic disconnecting differential) shift actuator.
This bulletin applies to 2009-2017 Chevy Equinox, Impala, Malibu and Traverse vehicles, equipped with an automatic transmission. The check engine light may be illuminated and in “rare” cases, the PRNDL may not be displayed.
More original equipment manufacturers are incorporating automatic high beam systems as a safety feature in vehicles. So how does this technology work and what can we expect to see as these vehicles start showing up in our shops for service?
A vehicle suspension system features springs and dampers (shocks). The spring supports vehicle weight and determines ride height. The dampers (shocks and struts) provide control of the springs, dampening compression and rebound.
This bulletin applies to 2015 and later Nissan Frontier vehicles equipped with a 4.0L engine. If you confirm that the MIL is on and DTC P0603 (ECM back up/circuit) is stored, confirm that the battery voltage is 11 volts or more with the ignition on and engine off.
Some owners of 2014-2015 Chevy Silverado 1500 or 2015 Suburban vehicles may comment that they can see the SES (service engine soon) lamp dimly illuminated while the engine is running.
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