Lexus LX470 engine cranks but randomly won’t turn over on Lexus LX470

Some Lexus LX470 owners report experiencing issues where the engine cranks but randomly won't turn over. Common causes include a weak fuel pump, which may require allowing the pump to build pressure by turning the key to the "on" position for about 10 seconds before starting. Additionally, owners have noted that slow cranking accompanied by a clicking sound often indicates battery concerns that need to be checked. Some have also encountered problems with the immobilizer system, which can sometimes be resolved by changing the batteries in the key fob. Furthermore, resetting the Engine Control Unit (ECU) by disconnecting the negative battery cable for 5 minutes has been reported to help with electronic control-related starting issues. Lastly, issues with electrical wiring, such as damage to turn signal wiring, can affect engine starting, making it crucial to inspect for any damage or loose connections. If these troubleshooting steps do not resolve the problem, consulting a mechanic or dealership for further diagnosis and repair is recommended.