How-Tos

27 resources

• Replace a 4x4 Vacuum Actuated Hub (IWE)

  The integrated wheel end (IWE) on Ford F-150 4x4 is known to make a clicking or ratcheting sound when it begins to fail. This is usually due to a vacuum leak in the actuator. Learn how to diagnose and replace it step by step, including torque specs.

• How to Diagnose Ford F-150 Wheel Bearing Hub Assembly

  Diagnosing a wheel bearing concern can be a daunting task. We have simplified the process to help you quickly and accurately identify a wheel bearing issue on your Ford F-150.

• GM 2.4L VVT Solenoid Resistance Test with a Multimeter

  Follow GoTech's GM 2.4L VVT solenoid resistance test with a multimeter, including setup, source-video moments and related VVT guides.

• EVAP canister: storage, flow and restriction clues

  Understand vapor storage and the outlet path. See why the Dart refueling symptom led to a remote filter rather than a canister verdict.

• Fuel-tank pressure sensor: interpret the evidence

  Understand FTP feedback, a fixed reading and the Sierra case. Separate scan-tool data, circuit evidence and a functional recheck.

• EVAP smoke testing: know what the test covers

  A 2011 Chevrolet Traverse 3.6L smoke-test demonstration: system setup, connection coverage, the excluded purge valve and intermittent-fault limits.

• EVAP purge valve: sealing, actuation and flow

  Three questions for purge-valve evidence: does it seal, does it respond, and does the expected flow follow? See why a downstream smoke test excludes it.

• EVAP vent solenoid: flow, sealing and evidence

  Separate an open vent path, a commanded response and sealing performance. Use purge/seal context before interpreting a vent-system code.

• How to Fix a Ford P1450 EVAP Code

  Step by step instructions on how to diagnose and repair a Ford with a P1450 EVAP Code.

• GM 1.4L P0171: PCV Checks and Repair Guide

  Follow GoTech's GM 1.4L P0171 guide through symptoms, PCV checks, repair steps and confirmation, with source-video moments throughout.

• How to Fix P0521, P0522, P0523 Codes on GM V8

  Learn what can cause a P0521, P0522 or P0523 trouble code to set on a GM V8 engine and how to fix it

• Fix Chevy Cruze/Aveo/Sonic P0597 & P0598 — Thermostat Heater Circuit (1.8L)

  Diagnose and repair Chevy Cruze/Aveo/Sonic 1.8L codes P0597/P0598. Includes thermostat resistance spec (~13–15Ω), control circuit test-light method, replacement steps, tools, torque, and video.

• Fix Tire Pressure Light

  What the tire pressure (TPMS) light means, common causes, and step-by-step ways to fix and reset it—including drive cycles, button resets, and relearn procedures.

• How to Diagnose a P0420 Code

  Learn how to diagnose P0420/P0430 codes with leak checks, O₂ sensor graphs, and confirmation steps before replacing the catalytic converter.

• How To Replace Driver Side Window Switch Mazda CX-7

  Learn how to replace the driver side window switch in a Mazda CX-7 in under 30 min.

• How to Test an Oxygen Sensor

  Step-by-step guide to diagnose, test, and replace oxygen sensors related to P0420 catalyst efficiency codes.

• How To Use Your Ohm Meter

  Learn how to setup your Ohm meter for testing, the difference between manual adjust and auto ranging, and how to understand the readings.

• Knock Sensor Replacement Procedure

  Learn how to replace a knock sensor on a 2006-2011 1.6L Kia Rio or Hyundai Accent

• P0420 Catalytic Converter Trouble Code

  DTC P0420 sets when the catalytic convertor fails to efficiently remove harmful pollutants from the engines exhaust gas.

• Parasitic Battery Draw Test

  A dead battery causing your car to not start is never fun. You recharge the battery or replace it and the vehicle’s alternator is functioning properly, but the car doesn’t start again the next day. The battery is dead again! This is called a parasitic draw or an unintended battery drain.

• How to Replace a 2011-2014 Ford F-150 Wheel Bearing Hub Assembly

  Step by step instructions, including video, of how to replace your front driverside wheel bearing on a 2011-2014 Ford F-150.

• How to Replace a 2015-2020 Ford F-150 Cabin Air Filter

  Step by step instructions, including video, of how to replace the cabin air filter on a 2015-2020 Ford F-150.

• How to Replace a GM 3.6L Timing Chain

  Follow GoTech's GM 3.6L timing-chain replacement guide with video, timing-mark illustrations, installation steps and final timing checks.

• How to Replace a GM 4.8L, 5.3L, 6.0L Oil Pressure Sensor

  Learn how to replace a GM V8 4.8L, 5.3L, 6.0L engine oil pressure sensor in under 60 minutes.

• How to Replace the Timing Chain and Water Pump on a Ford 3.5L

  See Mike's 2010 Ford Fusion 3.5L timing-chain and water-pump repair, with stage-specific timing diagrams, video moments and preparation notes.

• How to Replace a VVT Solenoid on a GM 2.4L

  Step by step instructions of how to replace a variable valve timing solenoid on a GM 2.4L

• How to Test a GM 3.6L Timing Chain

  Learn how to test GM 3.L timing chain problems with a labscope - P0008, P0016, P0017 etc

• Source-backed case companion

  GM P0446: follow the pressure evidence

  Follow a 2005 GMC Sierra 5.3L P0446 case: pressure-response clues, circuit checks and the demonstrated retest. Includes source video chapters.

• Source-backed case companion

  Fuel nozzle keeps clicking off: Dodge Dart case

  See how GoTech traced repeated fuel-nozzle shutoff on a 2014 Dodge Dart to its remote EVAP filter, with ESIM context and a refueling recheck.

• EVAP problem finder

  EVAP diagnosis: find your next useful check

  Start with a P0446 code, repeated fuel-nozzle shutoff or an EVAP leak test. Follow source-backed cases and find the right system explanation.