Question about 1979 Ford Bronco

3 Answers

What are the causes of rough to no idle on a 1979 ford bronco with a 400 cid stock engine. Motor will not idle on it's own

Posted by on

3 Answers

  • Level 1:

    An expert who has achieved level 1.

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Contributor
  • 50 Answers

Look for a major vacuum leak.

Posted on May 11, 2014

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 3 Answers

Vaccum leak

Posted on May 12, 2015

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

Your carbarater is the problem

Posted on May 14, 2014

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

SOURCE: rough idle; engine light appeared

I had that problem with my 2005 FX4 turned out to be a coil on #6 cylinder I replaced the coil my self and the light went out coil was $58.00.These trucks are sensitive to water in the gas you may want to add gas line antifreeze or isopropyl alcohol to your gas every other tank to displace any water which may be getting in there.

Posted on Oct 25, 2008

  • 43 Answers

SOURCE: 1993 Ford Explorer idles rough when engine is warm

try changing distributor cap & coil

Posted on Jan 06, 2009

  • 4 Answers

SOURCE: i have a 1988 ford bronco full size xlt it is ideling low when u

I just had the same issue with my 88 xlt w/351 W it wound up being the MAP sensor and the timing. I would check both of these and see if it solves your issue.

Posted on Apr 23, 2009

  • 3 Answers

SOURCE: FORD WINDSTAR 3.8 V6 ENGINE IDLE ROUGH UP AND DOWN WHEN STANDING

Idle air control valve is the problem. "idle motor" tap it with a hammer it should temporarily solve your problem. it is right on top by the throttle body.

Posted on Dec 19, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

Rough Idle when starting when motor is warmed up


My brother has a Ford F150 that does this the problem turned out to be a bad mass air sensor (little black box with plug in on it located next to the air box on the air intake pipe

Jan 29, 2014 | Ford Bronco Cars & Trucks

1 Answer

What caused my battery to boil over in my 79 bronco, has a 400 engine


the voltage regulator is at fault and it's killed your battery sorry

Jun 01, 2012 | 1979 Ford Bronco

1 Answer

I have a 1995 ford bronco with a 302. When it idles in gear it idles rough and when driving 35 to 45 miles per hour it bucks real bad. I have changed the egr and the sensor on top of the egr. what else...


Hi, Guy! My 95 Bronco runs a little rough whenever one of the vacuum lines gets broken or disconnected. Because of the age, these plastic lines get brittle and break easily. Check them all. You might also want to look at your engine's dampener (behind the engine's main pulley). Sometimes the dampener becomes detached from the pulley and causes the engine to vibrate.

Dec 31, 2010 | 1995 Ford Bronco

1 Answer

2000 ford expedition ,,rough idle in park..rough idle in drive,, sometimes dies..rpm's in drive at idle 400...replaced iac


Check the fuel pressure at the rail assembly, there should be a min of 40 lbs at the rails. Do you have any loss of power under a load? You may have an issue with your o2 sensor that is causing the ecm to send an improper signal to the engine ign/fuel map.

Dec 07, 2010 | 2000 Ford Expedition

1 Answer

1996 ford bronco 5.8 litre, auto, engine idle has


Do you have a check engine light on? First thing I would do is unplug the IAC motor when the engine is warm. If the idle speed doesn't change you have a vacuum leak or a bad IAC motor. If the idle speed goes down you might have a bad TPS or IAC

May 31, 2010 | 1996 Ford Bronco

1 Answer

I have a 89 bronco 2 with a 2.9 engine. I have


Try replacing the Throttle Positioning Sensor
Have the codes checked
You may need to clean the Mass Air Flow Sensor
this is best done by a professional as it contains some very sensitive wires and they are easily broken
The MAF is very expensive to replace

Mar 29, 2010 | 1986 Ford Bronco II

1 Answer

1979 Lincoln Continental Town car has a rough idle (400 cid). I have checked the timing and replaced the spark plugs and wires along with cap and rotor? What else could cause a smooth idle then a heavy...


I"d lean toward the dirstributor itself. You were right to check the timing but a balky distributor would cause occaisional mis-fires. Apart from that, the timing chain itself would be the next likely culprit.

Jul 06, 2009 | 1997 Lincoln Continental

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

Engine idles to fast and runs rough


you can check timing, or check for vacuum leaks

Oct 12, 2008 | 1989 Ford Bronco

Not finding what you are looking for?
1979 Ford Bronco Logo

Related Topics:

130 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

75817 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

fordexpert

Level 3 Expert

5495 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...