Car loosing power on pressing accelerator

2000 NISSAN PULSAR
210,000 MILES • 1.8L • 2WD • MANUAL
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VAAGGARWAL
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Hi. My car is making excessive sound and discharging high amounts of exhaust when idle. The exhaust smells like that from incomplete combustion and the sound is like power is being released in trenches.
When I start running the car it kind of feels like loosing the power. It normally rums in 5 th gear at speed of 60 bit now is giving problem in 5 th gear and have to run it in 4th even if driving at 80. The problem is seen in all gears and not just 5th. Even the pickup is not great. What could be the problem and way to trouble shoot
Nov 14, 2015 at 8:07 AM
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KHLOW2008
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The engine seems to be misfiring. Have the spark plugs and related components checked for a start.
Nov 16, 2015 at 7:19 AM