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Nissan Repair

Repair and maintenance information for Nissan vehicles

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Nissan Repair Information
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TOP 4 NISSAN REPAIR PROBLEMS

Crankshaft and Camshaft Sensors

When the engine has trouble starting from time to time-it does start but easily shuts off just after seconds or minutes of activity-chances are these sensors have started failing. Their exposure to changes in temperature due to their location must have interrupted the signals they transmit to the engine control module. Engine timing is thus affected, resulting in engine backfires and erratic rpm operation. A good way of addressing this issue is to check the battery ground wire routing if it is passing over the crankshaft sensor. Once it does, the ground should be moved away from the crankshaft sensor to one of the starter mounting bolts. A little modification on the cable's grommet may be necessary.

Fuel Filters

Experiencing shifting hesitation or hard shifting and feeling as if there is an "rpm limitation" going on are generally associated with glitches in the transmission system. However, if it involves the engine producing a pinging sound coupled with a poor performance, this could be related to a fuel problem, specifically the lean fuel mixture. In such a case, there may be too little fuel or too much air, which impacts the engine's performance. In particular, the engine is having a difficult time working properly so it cannot provide a smooth or fast shifting. Neither has the engine got the sufficient amount of fuel required to be able to keep on increasing the rpm. A quick fuel filter checkup may do the trick, however, especially if the Check Engine light is inactive. The fuel filter probably needs a replacement to rectify the situation. While at it, the body throttle should be inspected as well. It might have become too filthy that it needs a total clean-up right away.

Ignition Coils

If it is rough idle happening intermittently, ignition coils could be the most likely culprit, which is reportedly a common problem with some coil-on-plug ignition systems. Since this one is pretty hard to diagnose, the coils should be thoroughly checked using an ohmmeter to find out which ones are failing. Once the bad coils are identified, they should be replaced immediately. Regular maintenance of the coils-as well as the entire ignition system-is very much recommended to prevent a similar scenario from recurring.

Ignition Switches

A strong cranking and yet the car does not seem to start at all may simply point to a faulty ignition switch. As in a bypass type of ignition switch, electrical current to accessories that do not play a part during startups is disabled. Now, when the terminal that is supposed to have electrical current in the start position lacks it, the startup issue may come up. To determine if this is the case, looking into the start fuse found in the fuse box under the dashboard should help. If the fuse does not indicate any battery power while the key is in the start position, then a new ignition switch may be what is needed.

 

 
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