Parts for your 2017 Haval H6-Crank angle sensor

2017 Haval H6 crank‑angle sensor: what it does and how to look after it

Yes, the 2017 Haval H6 does use a crank‑angle sensor (commonly called a crankshaft position or CKP sensor). This is documented in the 2017 Haval H6 Workshop Manual for the GW4G15B (1.5T) and GW4C20B (2.0T) engines under the Engine Control System section, and in the Great Wall Motor GW4G15B Engine Repair Manual. Independent wiring and diagnostic data from Autodata/HaynesPro for the 2017 H6 also show a CKP sensor circuit and related DTCs (P0335–P0339), confirming the part is fitted and essential.

On the H6, the crank‑angle sensor tracks the exact position and speed of the crankshaft via a toothed reluctor wheel. The ECU uses this signal to time spark and fuel injection, sync with the cam sensors for variable valve timing, manage idle, and enable diagnostics like misfire detection. If the signal goes missing or flaky, the ute/SUV can crank but not start, cut out, or run rough.

Typical symptoms of a crook CKP include hard starting, random stalling, a dead tacho during crank, reduced power, and a check‑engine light with codes such as P0335. Because the ECU relies on this input to fire injectors and coils, a failed sensor often results in a no‑start.

The sensor isn’t a routine replacement item, but it’s smart to give it and its harness a once‑over during servicing—especially if the vehicle sees dusty roads or water crossings. On the 2017 H6 it’s mounted near the crank pulley or at the bellhousing area (location varies between GW4G15B and GW4C20B), reading a 36‑2 style trigger wheel.

• Keep the connector clean and pins tight, green corrosion or oil wicking in the loom is a red flag.
• If the engine has been washed or driven through deep water, check for moisture in the plug.
• Use scan data to confirm engine speed while cranking, 0 rpm usually points to the CKP or its wiring.
• When replacing, choose an OEM‑quality sensor, route the loom away from the exhaust, and torque the fastener correctly to maintain the air gap.
• After fitment, clear codes and perform a crank relearn/CKP variation learn with a capable scan tool if specified by the manual.

A competent DIYer can manage the swap in under an hour on most variants, though access can be tight. If in doubt, a workshop with Haval experience can test the signal with a scope and confirm whether the issue is the sensor, the reluctor, or the loom before parts are thrown at it.

• Where is the crank‑angle sensor on a 2017 Haval H6?
  It’s typically fitted low on the engine reading the crank trigger—either near the front crank pulley or at the gearbox bellhousing, depending on whether the H6 has the GW4G15B 1.5T or GW4C20B 2.0T engine. If access is tight from above, it’s often easier up on stands from underneath.
• Can you drive with a failing crank‑angle sensor?
  You might—for a bit—but it’s risky. Intermittent sensors can cause sudden stalling and no‑start situations. Best to diagnose promptly, once it fully fails, the engine won’t start at all.
• Does a new CKP need programming?
  Many will work straight away, but the workshop manual may call for a crank variation learn using a scan tool to tidy up ignition timing accuracy and misfire monitoring. Clearing fault codes after replacement is recommended.