Question about Ford Fairmont

1 Answer

Hi, one cylinder doesn't funtion properly compression 150 psi, average overall. Has spark, but plug is the only one that is oily all the time, 6 cylinder motor, motor runs rough, like one cylinder not firing. Thanks in advance

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 2 Answers

Sounds like a valve guid seal is leaking. This would cause the plug in that one cylinder to foul and not fire properly. I had the same problem with an S-10. You will need to either take it to a shop or remove the head and take it to a machine shop that can insert new guides and seals.Usely when this happens, the guides are worn out and have to have inserts put in and then redrilled. Your other option would be to replace the head with a used or new one.

Posted on Mar 26, 2011

1 Suggested Answer

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

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

How do you check if you have compression on a 84 porsche 944


You have to buy or borrow a compression gauge tester. It threads into the spark plug hole; so you pull all the plugs out, then check each cylinder's compression. The proper way is to first disable gas and spark, put the tester into the first cylinder, then crank the engine over a set number of times- the same amount of cranking for each cylinder, so all get a balanced test. While cranking, hold the accelerator pedal all the way to the floor-this lets the engine breathe normally, getting all the air available. then compare your compression readings: a good healthy engine will have all cylinders pretty even, in the range of somewhere between 150 psi-200 psi. Low compression readings means compression is being lost somewhere, like worn piston rings, bad head gasket seal, or valves not sealing.

Wondering if you have any compression at all? Hold your finger over a spark plug hole while someone briefly cranks the engine over. You can tell if there's any compression at all-you will feel the pressure build up under your finger. Rent or buy the gauge tester to get a true reading of your compression.

Jan 17, 2016 | Porsche Cars & Trucks

1 Answer

Why is there a cylinder 2 misfire?


Check these three things in the misfiring cylinder: spark, gas, and compression. One of them is wrong or missing. For spark check the spark plug and wire. Make sure you have spark on the plug wire, a strong blue spark. For gas, the fuel/air mixture may be wrong. Does the fuel injector pulse, putting gas into the cylinder? Possibly you may have a leaking injector or a clogged injector.

If gas and spark seem okay, you need to check compression in the cylinder. Low compression will cause a misfire. If compression is 20 or 25% lower than adjacent cylinders, that could be causing a misfire. For example, say numbers 1 and 3 cylinders had about 150 psi compression. 80% of 150 = 120, so if cylinder 2 is 120psi or less, that could be setting the misfire code. Low compression can be caused by valves not seating well, or bad piston rings, bad head gasket- something in the combustion area of the cylinder is losing compression.

Aug 17, 2015 | 2006 Mazda Tribute

1 Answer

WHEN I GIVE IT GAS IT START TO MISFIRE


Misfires are caused by one of 3 things-gas, spark, or compression-one of those is the problem. For gas, check the fuel pressure and see if it is at the right pressure for your car. Low fuel pressure will cause misfires. If pressure is good, it could still be an injector problem, like a clogged injector. If low pressure, suspect the fuel pump or the fuel filter.
For an ignition spark problem, check your spark plugs. Pull them out and inspect them for broken or cracked plugs, check the spark plug gap, check for oil fouled plugs. You may be able to isolate the misfire to a cylinder or two by the plugs condition. A misfiring plug or cylinder should show more black, sooty deposits than the other plugs. A normal firing plug will have a tan or brown colored insulator on the end with very little deposits. If the plugs are okay, clean them a bit if needed, and check for spark on the spark plug wire ends with engine cranking. Buy an inexpensive spark tester, or hold each spark plug wire metal end terminal 1/4 inch from a ground on the engine block, while cranking the engine. Wear a heavy glove to avoid getting shocked. Check that every cylinder is getting a strong blue spark to eliminate ignition as a problem. A weak, yellow or orange spark is an ignition problem, possibly a bad coil, or other ignition part.

If spark and gas is good, you may need to check engine compression. Any cylinder that has significantly lower compression than the other cylinders will cause a misfire, and set a misfire code. You should check for any trouble codes in the engine computer. A code reader or scanner would have to be connected to the diagnostic connector under the dash. What is "significantly lower" compression? About 15-20% less compression. Say you checked and had 150 psi compression in most cylinders. If one had 20% lower compression ( 150 X 20%= 30 psi, 150 -30 =120 psi, or same as saying 150 X 80%= 120 psi.), a condition like that can cause a misfire. I hope I have made sense here. Good luck, and post back what you find, or if any questions.

Apr 10, 2014 | 1998 Ford Windstar

1 Answer

Cranks won't start


First you must check to see if engine is mechanical sound by performing a compression test. remove the spark plugs install a compression gauge in the spark plug hole and crank engine about 4 cycles compare readings to all cylinders reading should be around 125-150 psi readings in the 50 psi range possible jumped or broken timing belt. If engine is mechanically sound test for spark at the spark plugs use a spark plug laid against valve cover and have some one crank it over look for the spark to jump the gap. A no spark problem is internal in the distributor.

Nov 07, 2013 | 1995 Honda Accord

1 Answer

2000 Chevy Blazer turns over but doesn't start.


I had this problem with my Durango.. everything you checked was good on mine but it would just turn over and not start. I towed it to a mechanic and it ended up being the cam shaft and crank sensors. Hope this helps

Feb 27, 2013 | 2000 Chevrolet Blazer

2 Answers

I have a 99 sienna and the cylinders have low pressure what can i do?


If cylinder compression is too low, the car may not even start because of it. Have a shop do a compression test or a leak-down test to check the internal health of your engine. A good engine should have pressures of 150-200 psi in all cylinders and be close to each other. A worn or high mileage engine may have pressure as low as, say 125 psi, but if still balanced (close readings), would still run decent. Compression below that, especially below 100 psi, is serious trouble. ignition spark refuses to ignite the air/fuel mixture and you get a misfire-a non-working cylinder. Low compression can be caused by worn piiston rings or poor valve sealing. Low compression in 1 or 2 cylinders can be a valve problem, burned valves or valves not seating properly.
A leak-down test will check each cylinder and if there is a problem, the test will find the cause of the problem.

Dec 11, 2012 | 1999 Toyota Sienna

3 Answers

3.4 GM v6. dead skip on #4 cyl. Spark plug ok, wire ok, replaced injector. Still dead skip. Found cyl. by disconecting wires to injectors. #4 not affected.


The very first thing that you should do after finding a cylinder mis-fire that can not be easily explained such as a fouled spark plug, is to take a compression test especially of the mis-firing cylinder to be certain that the mis-fire is not caused by a mechanical problem, and I have seen people spend a lot of time and money trying to hunt down an electrical problem when the actual problem was a mechanical one, and no electronic part will repair a burnt or bent intake or exhaust valve.

Jun 06, 2010 | 2003 Buick Rendezvous

2 Answers

The jeep still misfire on #2 cylinder after putting new coils,new spark plugs and #2 cylinder fuel injector


Hello regenald_135: My name is Roger and I will help. It appears you have replaced most of the parts related to a misfire. Have you checked the compression in number two cylinder? Without the proper compression the cylinder will not fire. The compression should be (120 to 150)psi. But any thing less than (100)psi. and the cylinder will not fire. The cause of low compression could be valve or piston related.Having replaced all the parts that already I would strongly recommend the compression test as this will likely show the problem. One other place you might also check. Remove the distributor cap. Try to move the rotor side to side.If the rotor wobbles side to side the distributor shaft bushings are worn. Be movement I mean more then a few thousands of a inch. I have ran across this a couple of times. This usually presents as a out of time engine. But could be the early stage of distributor failure. Should you need further help please just ask. Please rate the answer. This is my way of knowing the answer helped. Thank You for using Fix Ya. Roger

Mar 20, 2010 | 1999 Jeep Grand Cherokee

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

59 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...