Question about 1999 Ford Taurus

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My car bucks when driving it will die repeatly engine will race. shut it off for a little while start again and it will be fine for a while then will start doing it again

I have changed Egr valve low flow air control tuned it up changed air filter cleaned throttle changed vac hoses. this is driving me crazy. you drive it one time it runs fine park it come out the next day it runs badly it will buck and race when taking off, then when you stop it will race up then down then die. sometimes when you take off it will sound like it slips and then kicks in but then continues bucking and jumping. Please Help thank you

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  • John Rice Jan 23, 2013

    when you take off the engine will bog down you have to let off gas a little then it may or may not stop ,it more often than not has to be turned off and let it set for a while.

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  • Ford Expert
  • 332 Answers

Lawn mowers have had that problem before and what it was is rust or a object in the fuel tank blocking the flow of gas you might try changing the fuel filter there could be contaminate in the fuel line one way to test that would be to disconnect the fuel line from the engine and aim it in to a gas can and have some one turn the key to the on possition watch the flow to see if it sputters if it does theres the problem , then you should replace the fuel pump and filter as well as the inline filter.

Posted on Feb 05, 2013

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SOURCE: f350 2000 stalling and sputtering while driving after running a while or runs fine

Many possibilities:
Is it a Diesel?
Camshaft position sensor recall may cover it.
Gas or Diesel:
Fuel Pump and/or relay.
Fuel Filter.

Engine codes could help if Check Engine Light is on.

Posted on Aug 06, 2008

  • 1 Answer

SOURCE: bucking while idling

Have the upper and lower intake manifold checked. It needs to be a cold start. 2000's are notorious for having the gaskets crack and leak. This may be causing the engine to idle rough at start-up ans somewhat disappear after warming. Winter starts can shake the steering wheel!

P.s. I had it fixed at 65,000 miles (warranty), and am having it fixed again at $120,000 miles.

The Juicer

Posted on Jun 17, 2009

  • 4 Answers

SOURCE: cant get enough fuel pressure to run properly

i have a 94 mustang and the ac compressor went out on it and i have replaced the compressor and i need to replacer the dryer. I know that its not contaminated got the part for it and im not able to remove the dryer from the hose or the fire wall. i can pull on it and it still wont come out. the same with the hose that connects to the compressor. is there a special way to take it off or am i incompantant

Posted on Jul 27, 2009

SOURCE: 2000ford f-150 bucking and jerking under a load

COP Ignition Coil bad

Posted on Jan 20, 2011

90Ranger
  • 38 Answers

SOURCE: sputtering-missing-vibrating-knocking-backfire-bucking

I'm having the same problem with my 90 2.3L Ranger. I replaced the EGR Valve back in August and the truck ran fine (but the gas mileage was bad) until late December . I knew it needed an O2 Sensor back in August but didn't replace it until last Saturday along with the Idle Air Control Valve, Plugs and Wires. The truck ran fine for a couple minutes then started running like a VW bug! My code reader is now throwing out an EGR failure code, so I guess i'll take the 4 month EGR back and get a new one, and see what that does!_549.jpg

Posted on Jan 25, 2011

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97 Grand am v6 up & down idle. Driving =steady acceleration. I've changed, O2 sensor, throttle positioning sensor. Scan is still saying Random misfires? Get warm won't start.


P0300 Random misfire - lean condition , vacuum leak , low fuel pressure , fuel filter plugged partially , mass air flow sensor .
If the misfire is random, check for the following conditions:
?€¢
System Grounds: Ensure all connections are clean and properly tightened.


?€¢
MAF: A Mass Air Flow (MAF) sensor output that causes the PCM to sense a lower than normal air flow will cause a lean condition.


?€¢
Air Induction System: Air leaks into the induction system which bypass the MAF sensor will cause a lean condition. Check for disconnected or damaged vacuum hoses, incorrectly installed or faulty crankcase ventilation valve, or for vacuum leaks at the throttle body, EGR valve, and intake manifold mounting surfaces.


?€¢
Fuel Pressure: Perform a fuel system pressure test. A faulty fuel pump, plugged filter, or faulty fuel system pressure regulator will contribute to a lean condition.


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Injector(s): Perform injector coil/balance test to locate faulty injector(s) contributing to a lean or flooding condition. In addition to the above test, check the condition of the injector O rings.


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EGR: Check for leaking valve, adapter, or feed pipes which will contribute to a lean condition or excessive EGR flow.

Reviewing the Fail Records vehicle mileage since the diagnostic test last failed may help determine how often the condition that caused the DTC to be set occurs. This may assist in diagnosing the condition.

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My 1996 Mitsubishi Montero will start but not idle at all once driven. My father-in-law suggests adding some Sea-foam to the vacuum hose and the gas tank to help. My question is; where do I find the...


Back in the good old days, engines had various vac hoses that controlled other devices including the PCV valve. The idea was to use one of the vac hoses to pull SeaFoam directly into the intake and help clean deposits off the intake valves.
Today's engines have very few such hoses.
And in your case, the problem is probably dirty injectors or the throttle body itself.
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OBDII SETS CODES P0401, P0171 & P0174 . 1998 Mercury Sable


P0401- Exhaust Gas Recirculation Flow Insufficient Dectected
Possible causes - Harness or connectors (EGR volume control valve circuit is open or shorted.)
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It idles very low and then dies, it drives but very very slow 0 pick up


lots of possibilities
in no particular order...
  • MAF sensor (Mass Air Flow)
  • TP sensor (throttle Position)
  • IAC motor (Idle Air Control)
  • Torque converter
  • restricted exhaust
  • IAT sensor (Intake Air Temperature)
  • EGR valve (Exhaust Gas Recirculation)
  • Restricted fuel flow
  • clogged intake
  • burnt valves
However, based on the low idle and slow acceleration I am leading towards the MAF

Have you been to the parts store and replaced anything yet?

Has anyone "pulled" codes?


Please update and let me know how else I can assist you today!
Sean

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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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