Rick's Free Auto Repair Advice

Toyota 4Runner ABS codes C0226, C0236, C0246 and

Toyota 4Runner ABS codes C0226, C0236, C0246 and Co256 Diagnose and Fix Toyota 4Runner ABS Toyota has issued a service bulletin T-TT-0597-20 to address Toyota 4Runner ABS codes C0226, C0236, C0246 and Co256 on 2012-20 Toyota 4Runner vehicles. Toyota refers to their ABS system as Skid Control. Toyota is finding that owners who retrofit their vehicles with aftermarket LED or HID bulbs may be causing the ABS-related trouble codes to set. Cause of Toyota 4Runner ABS codes C0226, C0236, C0246 and Co256 Radiofrequency interference (RFI) caused by aftermarket LED bulbs … Read More

Ford grinding, clicking, ratcheting sound from wheel area

Diagnose and fix Ford grinding, clicking, ratcheting sound from wheel area Ford has issued a service bulletin 20-2307 on the vehicles listed below to address a Ford grinding, clicking, ratcheting sound from wheel area on vehicles equipped with the Torque-On-Demand (TOD) transfer case.  The vehicles listed below with the TOD transfer case may cause a grinding/clicking/ratcheting noise from the front wheel area. This may be due to partial engagement of the integrated wheel ends (IWE). To correct this condition, follow steps to remove and cap the vacuum supply line. Vehicles … Read More

Repair stripped oil drain plug

How to fix a stripped oil drain plug You’ll find lots of options for dealing with a stripped oil drain plug. Most of the universal adapter plugs don’t work, or work but eventually leak. Some people suggest using a Helicoil insert. Those usually leak over time because the sealer breaks down and the coil wicks the oil out. There are only two ways to permanently fix a stripped drain plug; replace the oil pan or install a drain plug insert.   Replacing the oil pan requires lifting the engine to … Read More

Clutchless AC Compressor — How it works

Clutchless AC Compressor How a clutchless AC compressor works As the name implies, a clutchless AC compressor doesn’t have a clutch to engage and disengage the compressor shaft from the drive belt pulley. Instead, the drive belt turns the compressor shaft all the time. That doesn’t mean the compressor is compressing refrigerant full-time though. These new variable displacement compressors use a swashplate that varies the stroke of the pistons based on how much refrigerant pressure is metered into the crankcase of the compressor. When the AC doesn’t require compressed refrigerant, … Read More

Diagnose a brake master cylinder problem

How to accurately diagnose a brake master cylinder problem If your brake pedal sinks to the floor during braking you have to first determine whether the problem is in the brake master cylinder or somewhere else in the braking system. Start by checking for brake fluid leaks at each wheel, distribution block, and all the brake lines. If you can’t find any leaks and you’re not losing any brake fluid between checks, chances are you have an internal brake master cylinder seal failure. To confirm that, you’ll have to diagnose … Read More

Car maintenance checklist

Top 10 car maintenance services that are critical to your car’s life Your car owner’s maintenance guide lists everything you should do to keep your vehicle running smoothly for the longest period of time. But a lot of those recommendations are actually just inspections. I’ve put together the most critical car maintenance services that you absolutely must perform if you want to keep your vehicle on the road. #1 Car Maintenance Service — Change your motor oil on time Your owner’s maintenance guide lists recommendations for oil change intervals. But … Read More

Subaru exhaust pipe recall

Subaru issuing recall for exhaust pipe cracks Subaru has issued a recall #WUJ-95R regarding Subaru exhaust pipe cracks on the vehicles listed below. Subaru has determined that the exhaust noise and odor on the affected models is due to cracks at the bellows portion of the front exhaust pipe, including the catalytic converter. The exhaust leaks can also cause the vehicle’s emissions system to deteriorate and no longer meet EPA requirements. What caused the Subaru exhaust pipe cracks? During transportation from the supplier, the spacing between the exhaust flanges may … Read More

Diagnose Hyundai AC compressor with variable displacement and external control valve

Hyundai service bulletin #17-HA-002  for AC compressor with variable displacement and external control valve Hyundai has issued a service bulletin #17-HA-002 to address an AC issue where: • The AC does not get cold enough • The high and/or low sides show abnormal system pressure on the manifold gauge (normal pressure should be > 130-psi at idle on the high side with AC set to MAX) Diagnose AC problem with Hyundai AC compressor with variable displacement and external control valve 1. Start the engine, set the blower speed to level … Read More

Does synthetic oil cause leaks?

The facts — Does synthetic oil cause leaks? Synthetic does not cause oil leaks? No, switching to synthetic oil will not cause leaks unless your engine was already leaking oil. Back when synthetic oil was introduced to the public, owners complained that their engines leaked oil. They blamed the switch to synthetic oil and from that point on, it became a well-known “fact” that switching from conventional to synthetic motor oil caused your engine to leak. But here’s what was really going on. Synthetic oil was designed for racing Racing … Read More

Tire pressure and load range

What’s the correct tire pressure based on load range? The recommended tire pressure and load range for your car is listed on a placard in the driver’s door area. But that recommended pressure is for the tires that came on the car. If you change to a different size tire that’s the same load range, you still use the recommended pressure that’s shown on the placard. But if you change to a different load range tire, follow the charts below. How to find the tire’s load range Find the tire’s … Read More

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