Question about 1991 Nissan 240SX

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Horn wont turn off

Hows it going, i have a 91 nissan 240sx and the horn seems to stay on after a bit and wont turn off, i have to remove the battery capable, it only started doing this once it got real hot here, its been consistently above 105 everyday adn it only does it in the heat of day

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  • 38 Answers

Unplug it

Posted on Jul 31, 2009


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After my car sat for awhile battery went dead. I got a new one and car ran fine for a day. now it sputters and wont stay running. I replaced the plugs and fuel filter but its still doing the same thin

Do a fuel sample. On a cold engine, take off a fuel connection somewhere and slip on a rubber hose to collect the fuel into a glass jar.

If you do not see immediately a fuel problem, let the fuel set at least 12 hours and recheck the jar. If you see a separation of fuel into layers, the gas is bad.

The bad gas solution may be the answer or you need to check the fuelpump pressure at the test port if fuel injected. Even though your car is a 1991 model, there are some diagnostics built into your car. Since you did not mention a "check engine" or "wrench light" the components are not indicating a failure. It could well be the gas.

Many people have bought the same parts as you or more, only to find that the gasoline was the culprit.

Aug 11, 2012 | 1991 Nissan 240SX

1 Answer

Where can i find a diagram for a 1993 240sx nissan on the AC
this is for heating and AC. For all your other needs go here:

Jun 03, 2011 | 1993 Nissan 240SX

2 Answers

I have a 91 240sx that is very hard to start when cold and you cant touch throttle or it will die

1) Does is crank / spin properly?. Good battery and connections?
2) Does it have high mileage? Check compression.
3) Fuel injected? Maybe cold start valve not working properly.

My best guess is check fuel delivery. Clean? filters, lines, good fuel pump?
Also ignition could be faulty. Good plugs, wires, cap and rotor?

Good luck!

Mar 26, 2010 | 1990 Nissan 240SX

2 Answers

I put a new alternator on my car and drove it with out the ground wire attached to the alternator now it wont start what do i do now? 1991 nissan 240sx 2.4l

call the store where you bought the alternator. most likely you will have to remove it and exchange it for another rebuilt one.

Oct 02, 2009 | 1991 Nissan 240SX

1 Answer

Left signal light stays on when i turn the headlights on.

240 Drifter says, check for a burned out bulb as when turn signals stay on constant sometimes means one bulb is burned out

Nov 18, 2008 | 1990 Nissan 240SX

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