Chevrolet Lumina Questions

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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...
Replaced the flasher switch under the dash two months ago.It seemed to work fine but now it is doing it again. Any ideas of what else it could be? Thank you in advance.
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...
the rough idle is from start to warmed up. when accelerating it surges? unless floored. recently it developed a large coolant leak. i cant tell exactly where its coming from be it seems to be from behind the water pum...
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...
OBD code 35. I have already replaced the IAC, this seemed to work for a few days. Now, the code 35 is showing again and it idles extremely high. When I start the car with the IAC disconnected, there is no change. I ca...
trying to remove air contioner and cant get the belt to loosen what bolts need to be removed and how do i loosen belt to remove air contioner please be specific and what tools are needed
If I were to purchase an after market oil dipstick how many inches should it be to get accurate reading?
Bought 91 lumina z34 and need a replacement dipstick as the one that came with car was much to short in length to read oil level in car.
it was running fine all of a sudden it died and have changed fuel pump. changed crank position sensor and still starts runs for 3 or 4 seconds and dies. starts right back up and does the same thing.
car smells of gas and sometime stalls at a stop
my cars sometimes and smells like gasoline
Is this normal or an indication of the oil pump going bad?
is this a throttle position problem? or clogged cat. converter?
Car was getting hard to steer. Pwr steering fluid resev.low, fluid leak. Can't see where its really coming from??? Which hose is most probable cause?