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Should I have the cam shaft sensor changed before the timing chain or just do it all together?
Hello. This is a matter of personal preference. There is no mechanical reason to replace one because the other is not working properly. However, if there are known issues related to the timing chain in your car and you do...
Car hesitates while accelerating - 1990 Mercedes-Benz 560SEL
Hello. It sounds like the spark plug wires, distributor cap, and rotor button should be replaced. It may even be necessary to replace the distributor shaft as well. The throttle body should be cleaned as well as having a fuel...
Car vibration, engine shuddering at idle
Hello. It sounds like the torque convertor is malfunctioning causing the car to vibrate and shudder. It is also possible that there is a problem with the drive shaft being out of balance. One more possibility is that the transmission...
Exhaust smell inside of the car - 1990 Mercedes-Benz 560SEL
Hello. There could be a leak in the exhaust located under the front seats of the car. There also could be oil leaking in the exhaust and the fumes of the burning oil could be coming into your cabin. Have...
Steering wheel vibration - 1991 Mercedes-Benz 560SEL
Hello. The problem you are having is due to warped rotors. When the surface of your rotors becomes uneven, they will cause a vibration during braking and at higher speeds. Have a certified technician, inspect the brakes and perform a...
Car suddenly won't crank or start, electrical components work - 1990 Mercedes-Benz 560SEL
Hello. It sounds like the starter is faulty. When the starter does not activate or engage the flywheel, the car will not crank or start up. Typically, the starter solenoid goes out causing this problem, but the starter will need...
NVIS (Immobilizer System) in my Pathfinder Armada is rejecting my key; I know its correct key.
Operating a modern computer controlled vehicle with a dead battery can damage the Powertrain Control Module due to the voltage instability, particularty voltage excursions on the high side (above 14 volts), that occur when the alternator has no buffer to...
How to replace spark plugs in Nissan 2010 titan service spark plugs on your vehicle, you must disconnect the negative battery cable. Inasmuch as the vehicle's Idle Air Volume Learning, Steering Angle Sensor Neutral Position, Sunroof Memory Reset/Initialization, Automatic Drive Positioner System, Audio presets and Navigation settings will...
AC takes a long time to get cold.
Hello. This vehicle originally may have been equipped with R-12 Freon and has been converted to R-134A Freon. If this is the case, the system will leak out the R-134A Freon over time out of the seals, hoses, and compressor...
At slow speeds the ABS kicks in when breaking. I'm on dry pavement. Is the speed sensor or hydraulic brake booster pump at fault?
Hello. Most of the time this is caused by a wheel speed or a yaw sensor issue. I would start by checking the tires. Make sure that they are all the same. If one of the tires is different than...
Car cannot accelerate past 20 mph - 1988 Mercedes Benz 560SL
Hello. You should have the fuel system injection checked to make sure the fuel distributor is working as it should and the fuel filter is not clogged with bad fuel varnish. I would suggest having fuel replaced with fresh fuel...
Engine ticking, lifters keep getting worn
Hello. The lifters that get worn is from a lack of lubrication. Have your engine checked for any sludge build up, and if so, make sure you are using the correct oil viscosity and you may want to use full...
AC not working
Hi, thanks for your question. I'd be happy to help. The AC and oil system on a Nissan Armada are not linked in any way mechanically. So, the likelihood of the dealer mechanic doing something to cause this issue is...
drop into gear engine revs out of control
This is often times a sign of a vacuum leak. There is a plate that is supposed to be closed when the engine is cold to preheat the air going to the throttle body. As the engine warms up this...
replace climate control module
Hello there, the climate control module on your 2007 Nissan Titan is located in the dash. To replace the control module, fragile parts of the dash and AC unit must be removed. This is a job best left to professionals...
I have a 2011 Infiniti QX56 and I have power but the radio and nav system won't come on and the car will not turn over
Hi. Although you have enough power for the dash lights and the interior lights to come on there may not be enough power in the battery for the truck to start and power the radio and navigation. The battery has...
Can a catalytic converter with manifold from a Nissan Titan fit a Nissan Pathfinder Armada
If they are both 2004 models, with the 5.6l V8, then yes, in this case, this appears to be a direct replacement. You should confirm this with whoever the parts supplier is for this part. If you need assistance with...
Oil pressure gauge is reading high
This is not normal. Issues like this should be looked at by a qualified mechanic. This can be caused by many things such as a blocked or clogged oil passage, over filling the oil the last time the oil was...
I got gas recently. Didn't put much in it, and it spewed back out. Does the evaporative solenoid need to replaced?
Hi, thanks for writing in. Yes, this is almost a sure sign of a failing evaporation canister solenoid. As you may know this solenoid is responsible for monitoring the fumes (and related pressure that builds) in the fuel tank. The...
while driving my titan it feels like it dragging or intermitenly slowing down
It's hard to say with this amount of information what the exact issue is. The truck could be slowing down for a number of reasons. Its going to take some more observations. Take notice of when it happens, i.e.: when...

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