(Combination) – SPARK PLUG TUBE SEAL – Remove & Replace V6 Both,All Six
Both valve covers leak
Brake fluid is right on the minimum line. This will cause red brake light to come on intermittently. Brakes are 50 to 60% front and rear. Inspected system thoroughly for any brake fluid leaks, also removed master cylinder from booster to see if there's any sign of leakage. No leaks found. It's possible that during the last break job the fluid level was not set properly. Topped off fluid.
Clean mass air flow sensor and throttle body
In conjunction with valve covers
P0171 system too lean bank 1 Monitor fuel trims while Road testing vehicle. Found idle trims close to normal but under load trims show 25% lean condition. Trace to contaminated mass air flow sensor. This will cause underestimated airflow under load. Need to clean MAF as well as the throttle body.
VALVE COVER GASKET – Remove & Replace – V6 Both
Vehicle is rear wheel drive, it is not equipped with CV boots. (no rack and pinion boot leak either)
Earl B. gave our service a 5 star review on 5/1/2021
Change oil & filter. Top off all fluid levels. Check & adjust tire pressure. Visual inspection of hoses, belts, etc. Lube chassis.
Engine fault code p0521 engine oil pressure sensor performance fault. Customer added one quart of oil to bring to a full mark. 1 quart low should not cause any issues with actual oil pressure. Confirm correct oil pressure on cold start. Record oil pressure readings during engine warm-up at 2000 RPM. Pressures slowly drops from about 50 psi all the way down to under 4 PSI as the engine warms up. There is an internal engine problem, likely bearing clearance issues. Engine needs to be replaced. May want to try oil change with 20/50 and potentially adding Lucas additive.
Tiffany L. gave our service a 5 star review on 5/9/2021