How We Fixed A Land Rover Defender in Limp Mode
The Land Rover Defender is an iconic vehicle, but when this customer entered our garage they had a situation that no one would want. Their vehicle had entered ‘limp mode’.
Limp mode restricts driving speed to 30-50mph and is designed to prevent further damage to the vehicle. You must visit the nearest garage when you experience limp mode.
Carrying on driving in limp mode will only lead to bigger problems and frustrate you as you try to get to your next destination. Not only this, but your car may require an expensive repair later down the line if it is not addressed immediately.
When our client brought their Defender to us at Garden City Garage, they noticed the engine warning light was on, and the off-roader had entered limp mode. Our technicians had fortunately seen this situation before and immediately got to work to identify the problem.
Initial Discovery
Initially, the technicians discovered the vehicle’s downturn in performance and bad idling; it sounded poorly. The check engine light was on and the vehicle was struggling in limp mode.
A car enters limp mode when the onboard diagnostics systems detect an issue that could cause serious damage. If the Defender had been driven aggressively or at high speeds then the issue could have been catastrophic, with expensive repair bills for our customer.
With a check engine light on the dashboard and heavily reduced performance, our technicians got straight to work. The first thing they noticed was the remarkably low mileage of this specific Land Rover. This led to the discovery that the customer only uses the vehicle for show purposes, and it’s rarely driven throughout the year.
We then deep-dived into the probable causes to quickly identify the issue and get it resolved in the best possible way for our client.
What Was Causing the Land Rover to Enter Limp Mode?
Garden City Garage has a thorough process to ensure all bases are covered in identifying the problem. Our process often finds potential issues that could occur later down the line and recommends repairs to fix them before they get worse.
With our in-house Land Rover expertise, we were able to perform diagnostics tests to quickly identify any fault codes. Using specialist diagnostics software, combined with our Land Rover systems expertise, we found a fault code and immediately knew what it meant.
The Land Rover Defender displayed the following fault code:
- P0183 – fuel temperature sensor A circuit high input
Our technicians knew how to handle this particular fault code thanks to their decades of experience in handling fuel temperature sensors on Land Rover vehicles.
Without expert knowledge, it’s difficult to identify fault codes – to the normal person it appears to be just a series of numbers.
Knowing this sensor experienced high input, the technician performed a live data check on the sensor. From the live data capture, a plan was created to further diagnose and fix the fault code for the customer. This involved a bypass check with a decade box. Decade boxes are used by specialists to replicate different electrical values and are built using a series of resistors, capacitors, or inductors. The wiring was also checked for damage and any break within the circuit to get to the fault quickly and effectively.
We used the live data capture to summarise our findings and explained it to our customer so they understood the issue.
Our specialists came to this conclusion that the temperature sensor failed, and required a replacement.
As our technicians had identified the issue, they set about fixing the customer’s Defender.
Fixing The Defender
Our customer was well informed about the fix to their Land Rover. Our technicians contacted them and made sure they found the best solution to sort the limp mode problem.
Garden City Garage takes the utmost care with our customers and their vehicles. As this particular Land Rover was in pristine condition, we wanted to ensure the customer was getting the best-recommended repair service.
Only once the customer confirmed and was happy with the recommended repair did we begin working on the Defender.
The faulty sensor was carefully removed by our technicians and a new part was sourced quickly, using our tight network of specialist parts suppliers.
Using only recommended or genuine OEM (Original Equipment Manufacturer) parts, at Garden City Garage we ensure our customers’ vehicles are treated to the highest standards with every repair.
After installing the new fuel temperature sensor, it was tested to ensure electrical circuits were working, and that fuel temperature could be read with the new sensor installed.
From here, our technicians cleared the fault code and the vehicle was test-driven to see if the dreaded limp mode had disappeared and returned to normal. The technicians kept a close eye on the check engine light too, which thankfully was no longer illuminated.
We make sure to thoroughly test any new part that has been installed and our process ensures that no further issues are identified later down the line. We successfully replaced the faulty sensor thus eliminating the check engine light and ensuring the Defender was no longer in limp mode.
The customer was very happy with the expert repair and diagnosis the Garden City Garage’s team of specialist technicians provided. This enabled the customer to get back on the road safely, ensuring their Defender was ready for anything.
Summary
Our client entered the workshop in disarray. With an important show to attend, the vehicle was experiencing limp mode and could not be driven normally. The vehicle had a check engine warning light on the dashboard and could not be driven over 50mph.
The thorough diagnosis procedure meant our Land Rover specialist team identified the cause of the limp mode and was able to address the issue professionally.
With the culprit being a faulty fuel temperature sensor, the team worked effectively to source the replacement sensor. They carefully remove the old faulty sensor and replace it with a new one, using genuine Land Rover parts.
The Garage City Garden expert team provided the client with a first time fix, knowing that the limp mode and check engine lights issues were fully resolved.
Priding ourselves in above-dealer service at Garden City Garage, we treat every customer in the best way possible, making every client we have through our garage happy with their expert vehicle repair.
If you are experiencing limp mode in your Land Rover vehicle, then do not hesitate to call or visit us. It could be the difference between a straightforward faulty fuel sensor fix or a total engine replacement that could cost you thousands. Contact us today at Garden City Garage!
