Question about 1987 Lincoln Town Car

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87 town car idles rough and stalls, but stays running at lights - also seems not to have much power

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When did it last have plugs and wires?

Posted on Jul 07, 2010

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My 2007 Chevy Silverado loses power when I come to a complete stop no engine lights appear but if I turn off the truck the problem goes away for awhile .


Loss of power, but no mention of rough or inability to idle (including stalling). If those additional symptoms are part of the problem, check for a vacuum leak to the intake. Listen for hissing or sucking noises near air hoses. Look for loose, cracked, or broken air hose connections. Check PCV valve...Cheap to replace, could be sticking, then loosen after truck sitting with engine off. A vacuum leak will not give any light indications, and vehicle will seem to run normal when applying gas, but will want to stall or run rough (or want to stall) when at idle or sometimes when taking foot off gas when slowing down.

Oct 08, 2013 | Chevrolet Silverado Cars & Trucks

1 Answer

1996 honda accord rough idle and dies


Do the following

Here are the most common causes of idle surge, 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, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake

Aug 18, 2017 | 1996 Honda Accord

2 Answers

I have a 1989 lincoln town car it stalls alot and will not stay running. When the car is left to idle the car develops a very rough idle and stalls. If the car is left to set for a week or 2 it doesn't do...


the first thing that i would replace is the O2 sensors. along with the fuel filter. then i would replace is the maf and/or map sensor. and/or vacuum leaks, pcv, remove the upper intake manifold and inspect all of the passage ways. if they are dirty, build up of carbon or oily residue that could be your biggest problem. i suspect your emission system is clogged up or blocked. that will throw off the computer.

Oct 09, 2009 | 1988 Lincoln Town Car

1 Answer

Engine stalls ,hard to startrun rough


Service Engine light came on and stays on and this is on my 1995 Grand Marquis LS 4.6 litre Engine. It is now idling a little rough

Sep 09, 2009 | Mercury Grand Marquis Cars & Trucks

1 Answer

Will not run at an idle


Try this, it is the common reason for this problem.
Here is the common cause of surges, 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, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake

May 22, 2009 | 1987 Ford Bronco

1 Answer

2003 cartier 4.6L 120K miles. Rough idle, at idle only.


has anyone checked for a vacum leak? a vacum leak will cause rough idle at idle. check the lines from the pcv valve.

Mar 21, 2009 | 2003 Lincoln Town Car

1 Answer

Rough idling and poor fuel economy on 92ford f-150


This whole problem is most likey due to a sludged up intake and idle speed control valve, do the following procedure and it should take care of the problems, also run a couple of cans of LUCUS brand fuel injector cleaner through, I know u will see it is more expensive than other brands, but the thing is it works!
Here is the most common cause of surges and stalls at stops and low erratic idle speed and rough idle, it is the idle speed control air-bypass valve and throttle valve (IAC for short), they get full of gunk over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake

Mar 13, 2009 | 1992 Ford F150 SuperCab

2 Answers

2003 cartier 4.6L 120K miles. At idle, and idle only, the engine will run a little "rough". When I accelerate, no problems at all. Any ideas?


Try this.
Here is the most common cause of surges and stalls at stops and low erratic idle speed and rough idle, it is the idle speed control air-bypass valve and throttle valve (IAC for short), they get full of gunk over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake

Mar 13, 2009 | 2003 Lincoln Town Car

2 Answers

Have a 96 camry 4 cyl auto. After highway driving, the idle becomes rough and wants to stall. The problem eventually goes away after driving a city speeds. Around town, it runs all day just fine. Help ,...


Here is the most common cause of surges and stalls and low idle, it is the idle speed control air-bypass valve and throttle valve, they get full of gunk over the miles and cause idle issues (stalls) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

Dec 05, 2008 | Toyota Camry Cars & Trucks

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