Q: My van will not go over 40 with over drive on. With over drive off drives fine. 2011 E350 5.4 190000 miles

The seat belt pretensioners are important safety features that help your front seat belts protect you during an accident. The pretensioners can only be used one time, so any time your vehicle is involved in an accident, you should have...

Hi, thanks for writing in. What you're describing sounds a lot like an AC belt (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-ac-belt) that is loose or the serpentine belt on your alternator loose (or a combination of both). A common mistake that some mechanics make is...

If the Check Engine Light (https://www.yourmechanic.com/services/check-engine-light-is-on-inspection) is on, then a fault code is set. While yes it could be the TPS, have the system diagnosed and fault codes pulled to verify what is actually causing the issue. If you replace...

Hello, the catalytic convertor (https://www.yourmechanic.com/services/catalytic-converter-replacement) can make that type of noise. Inside the convertor is a honey comb shaped element that the exhaust gases pass through. Part of that element can fracture and become loose within the shell of the...

Hello, the damage to the engine could cost a lot money. When the timing chain breaks, the result can be bent valves and damage to the cylinder head. The effective repair would be to replace the engine assembly. With...

The "apparent" oil pressure switch malfunction is not a cause of the stalling or misfiring. That malfunction with the switch has to be diagnosed and confirmed because sometimes there is nothing wrong with the switch itself but rather there is...

Hi there. The sound that you are hearing from the engine could be coming from the transmission. If you have a CVT (constant velocity transmission), then they are common to make a sound when driving them. I recommend seeking out...

Hi Manuel. Thanks for contacting us today. The camshaft position sensor is located on the driver side of the engine bay, attached to the side of the cylinder head. Since we can't attach images to show you the exact location,...

Your vehicle may be overheating. The best thing to do is seek an overheating diagnostic which will pinpoint the cause and then the necessary repairs can be implemented.