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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1 Answer

Runs good cold,runs bad when it warms up


misfire is bad timing
check cam time.
check spark timing.
bad timing causes backfiring..

did you put the spark wires back like you found them or better the correct firing order? if not it backfires.
last is lean backfire.

Jan 07, 2014 | 1995 Toyota Camry

1 Answer

Back fire, now misses


what year ?
backfires from an EFI engine are not good signs (ussually means timming issue).
Carburated engines on the other hand are more likely to backfire when left sitting for long preiods.

Mar 24, 2013 | Cadillac Cars & Trucks

1 Answer

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

Mar 17, 2009 | 1999 GMC Suburban

1 Answer

Stumbles on idle,hard to start when cold


That would be your coolant temp sensor it makes the car really hard to start in the cold and has poor acceleration and idle during warmup.

usally this goes away after the motor is hot

Feb 10, 2009 | 1997 Pontiac Sunfire

1 Answer

95 GRAND AM RUNNING BAD


fuel pressure regulater

Feb 08, 2009 | 1995 Pontiac Grand Am

1 Answer

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.

Feb 01, 2009 | 1999 GMC Sierra

1 Answer

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

Jan 21, 2009 | 1995 Jeep Grand Cherokee

1 Answer

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...


check harmonic balancer for slop back and forth,,,,these 3.8's have a crank posision sensor behind the balancer,that run off of the balancer,,,gthe rubber wears out and they start to flop around and timing gets messed up.../they cost around 100 bucks for a aftermarket,and if thats the problem,do yourself a favor and replace CPS while tour at it....good luck...Lee

Jan 10, 2009 | 1989 Buick Park Avenue

1 Answer

1989 Park Avenue dying after 60 miles, restart immediately then


sounds like the ignition module but it could be a fuel problem

Jan 10, 2009 | 1989 Buick LeSabre

1 Answer

Intermintant backfire after hittig bump hard to start poor miladge


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...

Jun 26, 2008 | 1995 Chevrolet Monte Carlo

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