Question about 2001 Lincoln LS

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Hard to start and backfires when starting when cold. What should I check?

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  • michaelethom Jul 02, 2009

    Recently replaced the plugs and one bad coil

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  • 6 Answers

First start with the spark plugs

Posted on Jul 02, 2009

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Posted on Jan 02, 2017

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SOURCE: hard start when air temp is cold, backfires when warm

Try this, remove (MAF) Mas Air Flow sensor,(be sure key is OFF) so you don't set a trouble code when disconecting wire conector, with some throttle body/air intake cleaner from the outlet side of MAF, spray the sensor clean, let dry, reassemble.Remove snorkle from throttle body, and with a old tooth brush, clean throttle body& plate with cleaner, may take a couple of cans if throttle is badly 'coked' up. Hope this helps.

Posted on Feb 01, 2009

bunnydawg
  • 5158 Answers

SOURCE: 95 jeep grand cherokee, hard starting, backfires, when cold

get a couple bottles of gas line antifreeze .. if you don't already use it and add it to the gas.

Robert

P.S. in minus 40 i don't even get out of bed... minus 23 here last nite... isn't winter grand

Posted on Jan 21, 2009

  • 2 Answers

SOURCE: 454 ci gm turns over hard backfires timing ok acts flooded

Check fuel pressure, and regulator. A leaking regulator gives a warm engine more fuel [ it does not like it] a cold motor does. same as a flooded motor. Good luck

Posted on Mar 24, 2009

  • 4088 Answers

SOURCE: gmc 4.3 won't start and backfires

If this engine has a distributor, the clamp bolt that secures it to the engine may be loose and that allowed the unit to turn which changed the ignition timing. If you can turn it by hand you will probably need to re-time it.

Posted on Sep 26, 2009

  • 6 Answers

SOURCE: Car backfires upon morning start. Hard starting.

Erc valve is stuck

Posted on Dec 07, 2009

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what year ?
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454 ci gm turns over hard backfires timing ok acts flooded


Check fuel pressure, and regulator. A leaking regulator gives a warm engine more fuel [ it does not like it] a cold motor does. same as a flooded motor. Good luck

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Hard start when air temp is cold, backfires when warm


Try this, remove (MAF) Mas Air Flow sensor,(be sure key is OFF) so you don't set a trouble code when disconecting wire conector, with some throttle body/air intake cleaner from the outlet side of MAF, spray the sensor clean, let dry, reassemble.Remove snorkle from throttle body, and with a old tooth brush, clean throttle body& plate with cleaner, may take a couple of cans if throttle is badly 'coked' up. Hope this helps.

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get a couple bottles of gas line antifreeze .. if you don't already use it and add it to the gas.

Robert

P.S. in minus 40 i don't even get out of bed... minus 23 here last nite... isn't winter grand

Jan 21, 2009 | 1995 Jeep Grand Cherokee

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1989 park avenue would run about 60 miles then die, could restart immediately, but would go about 4 to 10 miles then die again, could restart immediately but would repeat the 4 to 10 mile thing. A couple...


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Almost sounds like ignition problem... Hitting bump causing it to short out (turn off) for a second then restart can produce a backfire & hard to start. Bad gas (water in it) will cause backfire and hard to start. I would start with checking all plug and wire connections, putting in a good gas additive and water dryer. I your are injected I would Clean them up also... Try these out and go from there...

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