Question about 1997 Lincoln Town Car

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At idle the engine keeps speeding up and slowing down. car runs smoothly at speed, but periodically when waiting for a light ,the engine may begin to surge at irregular speeds and may quit. Turn the key, and It starts up instantly.

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Hi! I believe that you have a faulty MAF (mass air flow) sensor. I used to work on one and replaced it, everything got back to normal. The MAF has great contribution on engine performance specially on the idling and acceleration. Have it replaced and you'll be good. Hope this helps and have a good one!

Posted on May 08, 2010

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Posted on Jan 02, 2017

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Why does my recently tuned-up 1995 ford taurus with 127,400 miles, cuts out and sputters when I get up to a certain speed.


A couple questions first.. at what speed does it cut out at, and is the cut out consistent at that speed? Just to throw a couple ideas at you to begin with, it could be a plugged fuel filter, because what happens is that the higher speed you travel at, the more pressure it takes to push the gas through the filter. So if it's plugged, you will notice it at higher speeds. If you slow down, the gas will trickle through enough to keep the engine running smoothly. Start there, and if no help, write back and we'll get into some sensors to check. But they are a little more pricey...

Jul 01, 2014 | 1995 Ford Taurus

Tip

How to save fuel and make your vehicle last longer, too


Improving fuel economy is easy - just take it easy. It willmake your vehicle last longer, too. Here are some specific tips on how to savemoney on both fuel and repairs.
  • Keep your tires inflated at the correct pressure. Under-inflation causes tire wear and wastes fuel.
  • Do not carry unneeded weight in your vehicle. Excess weight puts a heavier load on the engine, causing greater fuel consumption.
  • Avoid lengthy warm-up idling. Once the engine is running smoothly, begin driving - but gently. Remember, however, that on cold winder days this may take a little longer.
  • Keep automatic transmission selector lever into "D" when engine breaking is not required. Driver with the selector lever in "4" will reduce the fuel economy. (This is referring to vehicles with Automatic drive)
  • Accelerate slowly and smoothly. Avoid jackrabbit starts. Get into the high gear as quickly as possible.
  • Avoid long engine idling. If your have a long wait and you are not in traffic, it is better to turn off the engine and start again later.
  • Avoid engine lugging or over-reversing. Use a gear position suitable for the road on which you are traveling.
  • Avoid continuous speeding up and slowing down. Stop-and-go driving wastes fuel.
  • Avoid unnecessary stopping and braking. Maintain a steady pace. Try to time the traffic signals so you only need to stop as little as possible or take advantage of through streets to avoid traffic lights. Keep a proper distance from other vehicle to avoid sudden breaking. This will also reduce wear on your breaks.
  • Avoid heaving traffic or traffic jams whenever possible.
  • Do not rest your foot on the clutch or break pedal. This causes premature wear, overheating and poor fuel economy.
  • Maintain a moderate speed on high ways. The faster you drive, the greater the fuel consumption. By reducing your speed, you will cut down on fuel consumption.
  • Keep the front wheels in proper alignment. Avoid hitting the curb and slow on rough roads. Improper alignment not only causes faster tire wear, but also puts an extra load on the engine, which, in turn, wastes fuel.
  • Keep the bottom of your vehicle free from mud, etc. This not only lessens weight but also helps prevent corrosion.
  • Keep your vehicle tuned-up and in top shape. A dirty air cleaner, carburetor out of adjustment, improper valve clearance, dirty plugs, dirty oil and grease, breaks not adjusted, etc. all lower engine performance and contribute to poor fuel economy. For longer life of all parts and lower operating costs, keep all maintenance work on schedule, and if you often drive under severe conditions, see that your vehicle receives more frequent maintenance.
Good luck.

on Nov 09, 2010 | Toyota Pickup Cars & Trucks

1 Answer

Engine pics


throttle position sensor try

Dec 21, 2013 | Cars & Trucks

1 Answer

Not step on the accelerator of vehicle automatic speed


Automatic vehicle at the beginning will automatically forward, but the speed is not too fast, because the automatic mechanism principle, high running loose throttle speed decreased than manual slow some, is a normal phenomenon. use gna 600 to diagnostic If the initial automatic acceleration, speed has a problem, the problem generally appear in the idle adjustment problems, such as: solar term door fault, the intake system leakage phenomenon, cause idle setting, you can go to your car repair station for inspection repair, in order to accurately determine fault.

Dec 09, 2013 | Ford Explorer Cars & Trucks

1 Answer

Still Rough Idle After Battery Disconnect


The first thing to do is not set up the idle speed, but to set the Idle mixture screw to lean best idle setting. First, turn in the mixture screw until the engine dies or runs worse, then back out the screw (recommend turning ¼ to ½ turn at a time). The engine should pick up speed and begin to smooth out.

The battery has nothing to do with the idle speed

Apr 09, 2017 | 2004 Mazda 6

1 Answer

When idleing once in a while it starts running rough and shaking truck, 1998 k1500 350. no engine light. when i gige it gas it smooths right out. engine seems like its a little louder than normal.


Here is the common cause of surges, cold stalls, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours.

To correct this problem Buy a can of throttle valve cleaner (it is made by CRC) from the local auto parts store, NEVER USE CARB CLEANING SPRAY, IT DESTROYS THE ANTI-STICK TEFLON COATING, spray it into the air intake through the throttle body of the engine until you have used about half the can, you will need to hold the idle up while you do this, it will try to stall, after this shut the engine down and disconnect the Negative (-) battery cable for 5 minutes. The intake is now clean, if you continue to have the idle speed control problems you may need to seek the help of a professional.

Feb 13, 2012 | 1998 Chevrolet K1500

1 Answer

Engine temperature reaches to high before cooling cycle begins


could be a bad temp sensor or faulty thermostat. so by cooling cycle do you mean electric fan, or water circulation. a bad thermostat will slow circulation down causing overheat even if cooling fans are on. a bad sensor will not operate electric fan properly or at all and car will get hot at idle or slow speed and cooler at higher speed. Keep in mind that electric fans can turn on at any given time so KEEP ALL FINGERS AND LOOSE CLOTHIG AWAY at all times.

Apr 02, 2011 | Nissan Sentra Cars & Trucks

1 Answer

Poor fuel mileage; sluggish possible mis fire idle has very low rpms no indication of check engine light at higher speeds freeway speeds runs good but poor fuel economy wheres the power?


Could be a lot of things, but if you have not replaced the air intake plenum gasket, this could be causing some of the issue. Spraying corborator cleaner around the gasket with the engine running should cause the engine to smooth out for a short period of time - just a diagnostic.

Jan 24, 2011 | 1995 Oldsmobile Aurora

1 Answer

Speedo will cut out when driving


Sounds like your "speed sensor" is failing. When it fails it will cause irregular shift patterns and engine idle speeds.

Jun 10, 2009 | 2000 Ford Focus

1 Answer

1993 oldsmobile cutlass supreme engine stalls choking


soundl like idle air control valve sensor
try a clean .............if no better replace

Apr 30, 2017 | 1993 Oldsmobile Cutlass Supreme

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