GrandVoyager Diesel Stalls: Fuel Regulator Alert

Having experienced similar symptoms with a Chrysler 300C 2.8 CRD from 2008, this sounds like the high pressure fuel pump issue that affected several diesel models from that era. The check engine light and rough idle, especially during cold starts, are typical indicators of fuel delivery problems. The fuel volume regulator is a common failure point, but in my case, the entire high pressure pump needed replacement as the internal components were severely worn. The symptoms started similarly, stalling at idle, significant power loss, and inconsistent performance. Car maintenance records showed the fuel system had never been serviced, which likely contributed to the premature pump failure. This is considered a serious repair as it affects the entire fuel injection system. Left unaddressed, it can lead to poor fuel economy and potentially damage other components. When the high pressure pump fails, metal particles can contaminate the entire fuel system, sometimes requiring additional repairs to fuel injectors. The repair involved: Complete high pressure pump replacement, Fuel system cleaning, New fuel regulator, Full system diagnostics For fuel efficiency and engine longevity, addressing this promptly is crucial. Regular fuel system maintenance could have prevented this issue.

Thanks for sharing your fuel injection system experience on the 300C. It closely matches what I am dealing with on my GrandVoyager. The engine misfire and power issues are getting worse, especially during cold starts. Did you have any additional automotive repair work needed after the initial fuel pump replacement? My mechanic mentioned potential injector damage which has me worried about cascading issues. Also, do you recall the total repair cost? It would help me budget for what is coming. The check engine light warnings are definitely concerning and I want to address this before it leads to more extensive damage.

Thanks for the follow-up about your GrandVoyager fuel system issues. After getting mine fixed, I can confirm the high pressure pump replacement resolved all the problems completely. The repair costs came to 1510€ for the complete job, including the defective fuel volume regulator replacement. I was fortunate that we caught it before any engine misfire could cause damage to the injectors, so no additional repairs were needed. The rough idling disappeared immediately after the repair, and the car maintenance has been trouble-free since then. Fuel economy also improved noticeably, I suspect the failing pump was affecting efficiency for some time before it became obvious. My advice would be to get it checked soon, as leaving fuel delivery problems unaddressed can lead to more expensive repairs. The check engine light cleared after the fix and hasn't returned. The cold start performance is now perfect, with no hesitation or stalling. The investment was worth it considering the alternative of potential injector damage, which would have significantly increased the repair costs.

Thanks everyone for the detailed insights about the fuel system problems. Finally took my GrandVoyager to a mechanic this week after the rough idling became unbearable. The car sensors picked up multiple fuel delivery issues, just as suspected. The diagnosis confirmed a failing high pressure pump that needed immediate replacement. Total bill came to 1680€ including parts and labor. More than I hoped for, but the automotive repair was worth every cent. The engine runs smoothly now, even during cold starts. They also did a thorough fuel system cleaning to prevent any engine misfire issues from contamination. Thankfully caught it before the injectors were damaged. Car maintenance will be a bigger priority for me going forward, learned my lesson about ignoring early warning signs. The check engine light is finally off and fuel efficiency has improved significantly. Really glad I got it sorted before causing more extensive damage. The car feels like new again.