My 1987 Maxima would be running normal then it slows down then pick back up speed. It would also jerk when its slowing down. What could be wrong? I would really appreciate you help.

Thanks in advance

Joseph

 

Two things that could be causing this:

1) if it does this at idle, then you need to clean the contacts to your cylinder head temp sensor.

2) if it does it while driving, you should adjust your throttle position switch.

 

Two things that could be causing this:

1) if it does this at idle, then you need to clean the contacts to your cylinder head temp sensor.

2) if it does it while driving, you should adjust your throttle position switch.

 

It does it when I'm driving. How do I adjust the throttle position switch? Where is it. Do you think I can fix this or I should carry it to a shop. I don't know much about cars.

Thanks for you help

Joseph

 

ON the side of the throttle body is a small black box. It has a wiring harness connected to it. THere's two small screws that hold it. loosen them just a bit. Start the car and let it warm up. You'll need something to check continuity...

WHen warm, pull the harness off. Roll the sensor down (end with harness hookup). PUt your meter to the top two terminals inside the switch. Have a buddy hold the idle at 200-300 rpm over idle speed. Roll the sensor back up slowly till you get continuity between the top two terminals. Tighten the screws and you're done. Haynes manuals should tell how to do this also.

If you take it to a shop and they want you to buy a new switch, they're probably idiots and wouldn't know how to set the new one if you bought it for them, and your problem would still exist.