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I have a 1986 Nissan Sentra Sentra that .cranks but wont start start I've changed all the plugs plugs ,roter button and distributer cap. I can hear the fuel pump running and smell gas. Could it still need A fuel pump? Actually it did start A few times but smoked very bad(white smoke) and back fired real bad and cut off and not start again. Also I want to mention that my cadaledic converter is shot and could that be creating the problem. Please help very frustrated and confused.

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  • 40 Answers

Sounds like ignition timing has jumped. if cat is plugged up it will bacmpressure and will not run.

Posted on Dec 03, 2014

  • Andre Walker Dec 04, 2014

    Thanks Matt for your help. So I removed the cat and am still having the issue. I was told it sounded like A fuel

  • Andre Walker Dec 04, 2014

    c for your help. So I removed the cat and am still having the issue. I was told it sounded like A fuel sensor. Any thoughts on that?

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SOURCE: 1999 Dodge Ram 1500 Extended Cab 4x4

idle air control motor on back of throttle body maybe malfunctioning and not allowing it to idle

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Fuel pump is most likely the cause. Probably just barely making the required pressure to start. Needs to maintain 60-66 psi while cranking to start.

Posted on Dec 21, 2008

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SOURCE: 1999 Dodge Ram 1500 Extended Cab 4x4

YOU'RE GONNA HATE THIS BUT IT DOES SOUND LIKE A FUEL ISSUE. HOWEVER HERE'S THE CATCH.....THE FURL FILTER IS IN THE GAS TANK CONNECTED TO THE FUEL PUMP. YOU HAVE TO DROP THE TANK OR TAKE THE BED OFF TO GET TO IT. AND YOU CAN ONLY GET THE NEW FILTER AT THE DEALER. THE LOCAL PARTS STORE DOESN'T CARRY THESE. BUT I'M NOT SURE ABOUT NAPA, THEY MIGHT. YOU MIGHT ALSO WANT TO CHECK FOR A VAC. LEAK AROUND THE THROTTLE BODY. LASTLY WHEN WAS THE LAST TIME YOU DID ANYTHING TO THE TRANS.? MIGHT WANT TO LOOK INTO THAT.

Posted on Jan 01, 2009

  • 1 Answer

SOURCE: when i start my car you smell gas ,and it smoke.

HTML clipboard If you can smell gas ONLY when the engine is running, then the gas didn't get burned completely. It could be the combination of the computer, oxygen sensors, and/or catalytic converter is going bad. If you could smell gas when it's parked, you might want to take it to a mechanic to have your gas line checked for leaks and for pressure test. Here's a website that talk a little about gas smell www.mycarsmellsbad.com good luck.

Posted on Jan 09, 2009

seanpwright
  • 2030 Answers

SOURCE: 97 crysler sebring convertible wont start cranks

Hmmmm...are you sure when you changed the timing belt that all the timing marks were ligned up correctly?

Did you check to make sure you had no damaged valves?

Posted on Nov 16, 2009

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2 Answers

I have A 1986 Nissan sentra that has been giving me problems starting. I've changed the wires,plugs, roter cap and button, had A bad catilitic converter removed it and am still hardly starting and when...


Can not use a vehicle without a converter

You have no fuel control, without it

Where did the oxygen sensors go?

Sounds like you have zero vehicle experience
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Compression test won't tell you the complete story

Need to do the proper tests for a head gasket, as well
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If you are sure they said, a distributer cap a roter and a distributer, there is a problem! Because on a 1998
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You did not mention at timing you have the engine, it should be at 8 degrees BTDC.

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