Question about Lincoln Town Car

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Car runs rough at idle and stalls when giving gas i replaced plugs,wires,throttle position senor,mass air flow sensor,fuel pump screen,and fuel filter

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  • 2525mom Sep 09, 2008

    My '07 MKZ has been in the shop 3 times (this time they have had it two weeks). It surges in drive/cruise control and rpm's drop when I'm stopped at a traffic light, then the car jumps. Dealership can't locate problem without a return code. The wrench light came on when it was dramatically surging and lunging while driving. But again, they tell me no code came back so no problem has been detected.

  • yadayada
    yadayada May 11, 2010

    Double posting same issue??

  • Anonymous Mar 13, 2014

    I have a 95 Buick riviera non supercharged it will start and run for about 1 minute then it will just stall out I have new fuel pump throttle position sensor egr valve idle air control valve and alternated and battery idk what else to look at

  • Anonymous Mar 22, 2014

    stalls when warm, rough idle

  • Anonymous Mar 23, 2014

    05 explorer running at rough idle, check engine light on, stalled..cranks but no start. replaced tps, fuel sensor, fuel filter, fuel pump..still no fuel

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Clean out ur throttle body, just follow the hose from the air filter to the throttle body. Need 2 people to do this. Don't remove the hose completely from the throttle body. Just enuff to be able to spray ur intake cleaner into the throttle body. Do this especially if its worse when the motor is hot, as this would confirm the problem.

Posted on Sep 04, 2008

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1 Answer

99 Chevy Silverado 2500 was running fine last night..got gas last night but got it from the same gas station as always...thismorning idle was realy rough,shaking the whole truck...really struggling for...


Have you changed plugs and plug wires lately. Sounds like misfire, possible ! Should also check fuel pressure , plugged fuel filter or weak fuel pump ! Mass air flow sensor dirty, or map sensor .What engine do you have and does yours have How to replace the spider injector on Cheyv motor 4 3 or 5 7 liter

Jan 20, 2015 | 1999 Chevrolet Silverado 2500

1 Answer

When I start My 1998 buick regal ls 3.8 it idles rough and stalls most of the time, the rpm's go up and down as soon as I let go of the key. If I step on gas for a few seconds it stays running. Motor


did you clean any carbon from the air intake and air passages around the idle control motor. carbon buildup around fuel injectors or intake manifold can cause this problem also.

Sep 20, 2014 | 1998 Buick Regal

1 Answer

Engen problem and missing


Sir, your question is not very clear, but I will still try to post a solution here. Engine missing could be due to any problem in fuel system, ignition system, engine or ECM as well.

LOW ENGINE IDLE SPEED (Poor idling):
-Throttle body (do the cleaning and idle speed learning)
-A /C signal circuit
-Fuel pump control circuit
-Fuel pump
-Intake system
-P C V valve (clogged or open) and hose

ROUGH IDLING:
-Cylinder Compression
-Ignition system (Igniters, spark plugs, wiring harness)
-Spark plug fouled, gap too wide or too short. (1.00-1.1 mm)
-Fuel injector circuit
-E C M power source circuit
-Fuel pump control circuit
-Fuel pump (required pressure 44 psi - 49 psi)
-Throttle body (cleaning)
-Intake system
-P C V valve and hose
-Air fuel ratio sensor
-Heated oxygen s ens or
-Mass air flow meter
-Idle hunting
-Throttle body
-Intake system
-P C V valve and hose
-Air fuel ratio sensor
-Mass air flow meter

HESITATION/ POOR ACCELERATION:
-Fuel pump control circuit
-Fuel pump
-Spark plug
-Ignition system
-Fuel injector circuit
-E C M power source circuit
-Mass air flow meter
-Throttle body (do cleaning)
-Intake system
-Valve timing
-Cylinder Compression


Jan 18, 2014 | 2008 Toyota Corolla

1 Answer

Car runs rough and will stall out if I come to a stop If I don't give it gas.


sounds like torque converter lock-up switch in transmission. If not, it kinda sounds like a mass air flow sensor. If there is a hole or leak in any of the ducting from the mass air flow to the throttle-body it will run bad also.

Mar 08, 2013 | 2001 Mercury Sable

2 Answers

Car dies out when I accelerate. Idles ok. Its getting gas but when I take off it stalls


There are 3 likely causes for your problem. It could be any 1 or a combination of the 3.
  1. Bad MAF (Mass Air Flow) sensor
  2. Clogged or bad fuel injector
  3. Bad TPS (Throttle Position Sensor) This controls idle speed when the engine is cold, warm, or with the AC on.
Most often it's #3. Most large auto parts stores will perform a complimentary diagnostic test on your car. This will give you error codes stored in the car's computer and allow you to hone in on the problem.

May 01, 2011 | 1995 Chevrolet Camaro

1 Answer

VERY ROUGH IDLE NO EXCELERATION


Try a few if these ideas...

Priority Action Part Type Cause
1 Inspect Spark Plug Fouled, Damaged, or Broken Spark Plug(s).
2 Inspect Hose (PCV) Clogged or Collapsed PCV Hoses.
3 Inspect Wireset Worn, Damaged or Faulty Spark Plug Wire(s).
4 Inspect Distributor Worn, Damaged or Faulty Distributor.
5 Inspect Catalytic Converter Clogged or Faulty Catalytic Converter.
6 Inspect Fuel Pump Low Fuel Pressure.
7 Inspect TimingSet Slipped TimingChain or Worn TimingGear(s).
8 Inspect Knock Sensor Improperly Connected or Faulty Knock Sensor.
9 Inspect M.A.P. (Manifold Absolute Pressure) Sensor Faulty M.A.P. Sensor.
10 Inspect Throttle Position Sensor Faulty or Incorrectly Connected Throttle Position Sensor.
11 Inspect Mass Air Flow (MAF) Sensor Damaged, Loose, or Faulty Mass Air Flow Sensor or Circuit.
12 Inspect Air Cleaner Temperature Sensor Damaged or Faulty Air Cleaner Tempature Sensor.
13 Inspect Fuel Injector Pressure Regulator Faulty Fuel Injector Pressure Regulator.
14 Inspect Piston Ring Set Worn or Broken Piston Rings.
15 Inspect Timing Specification Incorrect Ignition Timing.
16 Inspect Fuel System Pressure Incorrect Fuel Pressure Being Delivered to Carburetor or Fuel Injection System.
17 Inspect Fuel Filter Clogged or Dirty Fuel Filter.
18 Inspect PCV Valve Plugged or Damaged PCV Valve.
19 Inspect Valve Burned, Worn, or Sticking Exhaust Valves.
20 check idle stop solenoid - if faulty, could cause rough idling
21 inspect distributor cap/rotor - if burnt, could cause loss of acceleration

Apr 18, 2011 | Chevrolet Cavalier Cars & Trucks

2 Answers

1999 Ford Taurus mechanical problem


Hello,
your problem appears to be the idle control motor located on the air intake manifold it is a small motor that goes bad quite often. Other items that can cause this is a bad /clogged air filter or a tune up (spark plugs and wires), or clogged fuel injectors. to clean the injectors you can buy a container of fuel system cleaner and pour it into the gas tank and as you drive it cleans the system.

Once the fuel system is cleaned via a tankful of cleaner & gas then the idle controller motor would be next on the list to be replaced.

Good Luck !
Rich Lilja

Dec 03, 2008 | 1999 Ford Taurus

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