1990 Mazda Truck engine

1990 MAZDA TRUCK
200,000 MILES • 4 CYL • 2WD • MANUAL
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DAVIDKURT
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Engine immediately jumps to 2K rpms when started. any more than 4K rpms and the engines chokes ite=self too death literally. Guage max rpm is 6K. Timing has been checked. Compression reads 160 145 145 140 in cyl 1234 respectively. The tester said 2 and 3 come up slowly. changed many parts plugs wires used coil and chips near coil. new starter. previous alternator was bad and i believed fried the battery. replaces with used alternator(tested) and battery. paid large sum too investigate problems. mechanic found blockage in the air manifold.
Mar 25, 2008 at 2:22 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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