MVS Contributor jreed hits it out of the park with a DIY on an overlooked vacuum hose: “I was out looking around in the engine compartment (97 855 GLT with ~162k miles) for opportunities to fix something this morning. I’ve already replaced most of the vacuum lines in the car, but I found a short crumbly vacuum connector that I had overlooked the last few times I checked the car. This connector is located above the transmission, near the lower radiator hose. It is part of the Fuel Pressure Regulator line from the intake tube near the MAF Sensor and connects between a white hard plastic line and a metal line that runs over to the fuel pressure regulator on the passengers’ side.”
As performance levels rise so too do the necessary supporting components of the engine to reach the power goals you might have. Most fuel system upgrades are pretty straight forward and only consist of a fuel components I.E. Fuel pump, Injectors, and fuel pressure regulator. For the most part the Walbro series of fuel pumps are a popular cost effective option when it comes to replacing the factory pump.
Fuel Pressure Regulator Symptoms In addition to tackling codes this weekend, I recently noticed the smell gas inside and outside my 850. I popped the hood and noticed a slow leak from the fuel pressure regulator. I disconnected the vacuum line, which NOW, I know was a big mistake because after reading the Chilton’s manual, […]