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What causes power surge in Lincoln LS while foot is on brake

The engine in my Lincoln surged to high revs while I was parking last night. What would cause this problem, and how is it repaired?

Posted by Gary Michael on


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oscar ulloa

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  • 66 Answers

Could be related to brake power booster, requieres a litle bit of troubleshoting, try to listen for an air/vacum leak.

Posted on Jul 28, 2014


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Check for vacum leaks on hose going from the intake to the brake booster. Also check the website. Click on the for users button. Enter in last eight digits of vin and see if pcm (computer) needs a update, or if there is any other open recalls on the van.

Posted on Jul 21, 2008



  • 1 Answer

SOURCE: s10 blazer surges

might wanna check intake gasket for leaks on the high engine rev as for tranny might be in the comp

Posted on Dec 07, 2008


  • 197 Answers

SOURCE: Car idles erratically-surges and revs up and down

1.Verify that the cooling system is full of coolant and there is no air in it. 2. Remove the air boot from the throttle body and cover the throttle body with something that will stop the airflow . the Fast Idle Valve is the problem.

Posted on Feb 28, 2010


  • 1 Answer

SOURCE: 2000 Lincoln Towncar 50k miles. Stalls, idle

my 2000 lincoln ls v8 runs great however sometimes it will stall at idle what could be causing this.

Posted on Feb 09, 2011

Alan Kirkwood

  • 144 Answers

SOURCE: 1994 22re engine surging idle when

Check for a vacuum leak in the vacuum assist diaphragm. A leak can allow far too much air into the intake manifold, causing an increase in engine speed.

Posted on Feb 27, 2011

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1 Answer

Engine idle revs high when in park or nuetrol. When driving ckek engine light is on off intermittinlly, a loss of power.

Always check for trouble codes when the check engine light turns on during engine running. After repairs are made, a scanner can be used to erase the codes.

It sounds like a fuel problem, so you would need to have the fuel pressure tested. This will verify the fuel pump and fuel filter are not the problem if the pressure is correct.

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1 Answer

What caused my Lincoln ls to surge while foot was on the brake?

My 1st guess or 1st instinct would be to say it's a computer software issue, becasue I can't think of anything mechanical that could cause this type of issue. I suggest instead of asking here, you contact your car dealer or manufacturer.

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The missing while accelerating is likely due to ignition coils and/or spark plugs going bad. The missing while in park is a normal thing. The car has a rev limiter that will not allow the engine to rev to higher than 3000 RPM while in park.

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check vaccum lines. inspect throttle cable and spring. if cable is warren can stop it from releasing all the way

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Engine revs high in park & neutral

you could have a vacum leak some where in the system that can cause high rpm,also if you have a bad tps(throttle position sensor) it can cause this type of don`t say if you have check to see what is turning on the check engine light and what code is in the computer.this should have been done and may have help to find the problem in the begining.

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BBB INDUSTRIES show 11 TSB (tech bulletins) on your fuel system... Merely reading thru them can give you exceptional insight to the elements & function sensors of the fuel system...

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BBB Industries Premium Alternators Starters Power Steering Products

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If the engine revs that high, dont put it in nuetral, you may blow your engine. Is the engine light on? what code is in the system? Sounds like a faulty idle air control motor. (it is located on the throttle body assembly.

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Sounds like a vacuum leak. Check all vacuum hoses on the intake, throttle body, etc. Sounds like one cracked or came off. Post back if you have any questions. Hope this helps.

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might wanna check intake gasket for leaks on the high engine rev as for tranny might be in the comp

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