1995 Chevrolet Lumina Questions

All 1995 Chevrolet Lumina Questions

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After replacing the power steering pump, p.s. rack, both pressure hoses ....The steering is extremely difficult & noisy !!! All the parts have been changed out 4 times ...thinking faulty parts ..HELP ! I miss driving...
After the gas analysis of the before cat. NOx and the after cat. NOx, the efficiency of a working cat. would be 70%-75% and above!
I like to check my 95 Chevy Lumina 3.1L V6's Catalytic converter's efficiency in reducing NOx. What is the exceptable (threshold) percentage? 50% for 1000ppm NOx before converter, and 500ppm after converter, ok? thanks!
My chevy lumina 95 3.1L V6 has a weak/small and intermitten leak at the flange gasket between the exhaust manifold and the exhaust pipe before the catalytic converter. Will this leak cause a problem with California sm...
Smog test result shows too high NOx at both 25mph and 15mph, but good higher NOx at 1610rpm(25mph) than that at 1670rpm(15mph), where the engine generate higher gases. what gone wrong? the engine ? the CAT. converte...
Just had a CA smog test from a star center. The results are okay, except NOx as below: HC(ppm) 18/59(max.)@15mph(1663rpm), 13/34 @25mph(1616rpm)OK CO(%) 0.03/0.34@15mph, 0.02/0.32@25mph OK(PASSED) %CO2 14.6@15mp...
When i turn my switch to my head lights on only my side markers come on but no headlights. Only when i put my brights they work. Before i just to wiggle my steering wheel and they came on but now they dont want to an...
My Chevy Lumina-sedan 95 3.1V6 engine shows camshaft sensor error code 17, but the engine starts up fine and idles&runs smooth no backfires, in my opinion. If camshaft sensor not the problem, whatelses wrong can tickl...
When I first turn the ignition key to on position, not yet starting position, I will hear the fuel pump's motor running noise momentarily, indicating fuel pump running. My question is that will the fuel pump be run...
I've only owned my car for 5 months. I havent even put 1000 miles on it yet. It already had a loud exhaust leak. It overheated last month and that's when I noticed that the coolant was rusty colored. I put new coolant...
I had a rebuilt V6 3.1L engine installed in my chevy for about 2 years ago. Recently I switched from semi-synthetic engine oil, to the new 15k fully synthetic oil about 5k miles ago, now I've noticed some engine oil l...
No check engine light, no codes, ever. So i don't think it is a sensor. Car stalls randomly turning left. If it does not stall you can feel it bogging down most times. Right turns are fine. Also cannot start the car w...
I checking my auto trans fluid: the fluid's color and level are okay, but usually there are always some small traces of dark metallic debris or tiny fine metallic particles on the dip stick around the top of fluid lev...