Hi there. Try pulling the fuse that is marked security and see if the engine will start up. If the engine starts up, then the alarm control system has failed and needs replaced or the battery in the key fob...
The radiator leaking coolant would be the the most important leak to repair first. The thermostat can be checked by watching the temperature on the gauge to see if the temperature gets up near the middle of the gauge and...
A mechanic would need to do a through inspection to see why the injectors were damaged, and check all vent hoses for leaks. Sometimes, a smoke machine can be used to find what is leaking. I recommend having a mechanic,...
The regulator is mounted to the fuel filter housing where the fuel line goes in. You may have a bad injector or two that is causing the problem you are having. The injectors on these engines had issues that are...
Engine heat can degrade components such as ignition coils and the crankshaft position sensor. The components will then fail once they are hot. There are other possible causes of the stalling, too, such as the fuel pump relay opening or...
Have the residual pressure valve for the locking brake checked for problems. Residual pressure valves maintain a very slight hydraulic pressure for each brake in order to make the brakes more responsive when you press the brake pedal. If it...
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Hey there, thanks for writing in about your 1990 Mercedes-Benz 300D. Typically there are a couple of different options in the interior light switches. There is usually an option to turn them on manually, or to have them come on...
Hi there. Unfortunately, our mobile mechanics do not offer engine swap services in North America, so we're really not best suited to answer this question for you. The best advice we can offer is for you to contact a local...
A few different items can cause the vehicle to have a vibration. The most likely would be a misfire, engine mount, or transmission mount. Most vibrations have a RPM range at which they are most noticeable. Increasing the idle if...
Check to be sure the transmission has adequate fluid. Too little fluid and the car won't move. The ABS system electronics, and the braking control that the ABS pump provides, do not have any connection to the transmission. If multiple...
While the horn might not be the most sophisticated piece of equipment on your car, it does provide you with some safety. It can be used to warn other drivers while on the road, as well as for calling attention...
The headlight switch will generally control parking lights, headlights, running lights and high beams. If you are getting power up to the switch and the components do not work, the fault may be in the switch or there is a...
Hello. The EPS light comes on when the computer detects an issue with the electronic power steering system. If the power steering is hard, and the computer has been replaced then it may be possible that the issue lies elsewhere....
If the reduced power started immediately (first key start) after you worked around the fuses, there is probably an electrical cause. If there was any delay at all though, that raises the possibility of mere coincidence, in other words the...
Hello, thank you for writing in. Simply pulling the mass airflow sensor is not a good enough test. You will want to test it with a multimeter to get an accurate reading on how it is working. The symptoms you...
The P0125 is "insufficient coolant temp for closed loop operation" This means your engine is not warming up. An automobile engine operates much more efficiently at about 180-190 degrees F so there is a thermostat in the cooling system that...
With a vehicle as new as yours, the likelihood of a transmission issue would be fairly slim unless damage has been done. The clanking and the rough idle may be the cause of the jerking motion. You should turn your...
Depending on the year, make, and model of your vehicle, the light means you need to do a parked regeneration of the catalyst. Your vehicle may also be telling you it is regenerating. To be sure, I'd suggest having a...
Hi there, and thanks for writing in. It's hard to give a specific answer without having any information regarding your exact make and model, but this problem in general sounds like something that should be diagnosed by a qualified technician,...
Hey there. I would start by checking the speed sensors. The plug that connects to this in the engine bay can become wet and can cause this type of problem. Also, check the alternator, and VSS (vehicle speed sensor) fuse...
