Question about 1993 Ford Explorer Limited

2 Answers

Engine has a miss and runs rough just purchased prior owner rebuilt top half of the engine-valves lifter-push rods rtc 500 in parts-got to be a sensor let me know what u think

Posted by on

Ad

2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I HAVE A MIS WHEN FIRST STARTING ENGINE IN THE MORNING & THE TRANSMISSION SLIPS

Posted on Jul 21, 2011

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Ford Master
  • 5,546 Answers

Hello, You should be able to run a scan and find the problem. A sensor would trigger a "check light" and give a number Code. Autozone, Oreillys, and Advance will scan your vehicle for free.

If you have no check light, then you need to do some old fashion testing without a computer. Use a Vacuum gauge on the running engine and see whether the vacuum levels are steady and if they are at a normal level. Bad valve springs and bad compression will make the needle bounce.

You can do a compression test either by using handgauge or with a computer using a cylinder balance test. The balance test can be performed by a shop having better testing equipment. It will show you how much work each cylinder is doing and will identify each cylinders' characteristics without opening the engine.

You can also check the seams of the Intake manifold with a mist of water from a spray bottle while the engine is running. Any change in RPM will indicate a manifold leak. Once you find the leak, fix it and then try looking for an additional problem if it is still running rough.

The last item I can think of is the timing. Some of the sensors are adjustable and may not be in time.

Posted on May 25, 2011

Ad

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

I was quoted $500 to replace all the lifters. Is this a good price?


That is a ridiculously high price to replace lifters on a 4 or 6 cylinder engine. On the Mitsubishi 4 cylinder motor, the only thing that is needed to do is remove the valve cover and remove the rocker rod. (2 rods which hold the rocker assembly.) Next is remove the lifters from the bottoms of the rockers and pop in the new ones. Be sure to soak the new lifters in oil for 24-48hrs prior to install so they are pre-filled before install. Replace the rocker assembly and torque down to specs. replace valve cover and then start the vehicle. Check that there is no loud tapping noise and do not race the engine until the lifters have pumped up with engine oil. You should replace oil and filter for this engine work as well.

Apr 17, 2015 | 1994 Mitsubishi Mighty Max

1 Answer

What causes a tapping noise when the engine is running in a 2002 Saturn L200?


Lifters, push rods and rockers arms. That's what does it. To check lifters. Start the engine and get it up to operating temperature. Put a half quart of transmission fluid in it and let it run. If the tapping goes away, let it run for about 30 minutes. Drain the oil and change the oil filter. Refill it and add some oil treatment first, lucus, slick 50.. what ever you prefer. If the noise doesn't go away. Look at the rocker arms and push rods, they should be polished, replace them as needed, I would still put the additive in.

May 12, 2014 | 2005 Saturn VUE

1 Answer

Valve setting cougar 1989 3.8 v6 how to do it


Hi Bill, I'm fairly sure your vehicle has hydrolic tappets. If they are noisy I advise replacing the lifter assemblies. The lifters ride on top of the camshaft which is usually fitted inside the engine block. Depending on the engine you may be able to remove the lifters with a stiff wire onto which a very small hook has been fashioned at its end. Remove the rocker shaft assembly and then the push rods. make sure the wire is the correct length to reach the lifters and engage the hook into the clips on top of the lifters and gently pull them out. Before fitting the new lifters, fill a container with a very thin lubricating oil or diesel, submerge the lifters in the oil and with a suitable tool which will not damage the surface where the push rods rest, pump them until all signs of air are evacuated from each. Fit the new units into the engine and refit the rocker shaft assembly. Make the first adjustment of the valves using 0.30mm feeler gauge. If possible get a third tappet cover and cut off the top by removing enough material to allow the use of the tools required to carry out final adjustments. Start the engine and have it running at idle speed. the until the hydrolic followers become fully charged. the sound you should hear is a clacking sound. Tighten further until the sound disappears and then a further half turn and then tighten the locking nut. Some vehicles are fitted with single self locking nuts, which should be replaced with new. Once the engine is running as it should replace the tappet covers and all the other stuff, put your feet up, give yourself a pat on the back or get someone else to that for you and you should be done. Regards John

Sep 16, 2012 | 1989 Mercury Cougar

1 Answer

Excessive lifter noise


Did you follow instructions for adjusting the valve lash? Normally, you take out all gap at the circular part of the cam and then go another half or three quaters turn.

Sep 01, 2017 | Chevrolet K2500 Cars & Trucks

1 Answer

I have a 1983 Ford ranger with a 2.3 4 cylinder, yesterday, after replacing a lot of parts, it finally was running great--no miss or rough idle. Until I revved up the engine. Then it started running...


Hello, If this is a push rod engine I had an identical problem with an engine in my 1988-1989 Jeep Wagoneer. It was a Buick V-8 and behaved exactly like your Ford engine.

On my engine it was weak valve springs. You could take your thumb and push on the valve spring while the engine idled and the engine would miss out. Turn it off and start it up and it would idle smoothly, rev it up and let off the gas and it would miss out and shake. You could also have hydraulic lifters (check your model) and they could behave like this. At idle the lifters would pump up, but the lifters may not refill fast enough to work the valves smoothly.

If you have hydraulic lifters they must be centered in their travel to pump correctly. Even if you have solid lifters the valve adjustment can affect engine performance.

Jul 19, 2017 | 1983 Ford Ranger

1 Answer

How to quit lifters on a 1992 mequry grand marguis.


if the marvel mystery oil does not work then someone has to pull the valve covers off, the rockers off, the push rods out, the lifters out, put new ones in and reassemble. note that the bottoms of the lifters on a car that old will be mushroomed out making this whole process a real b**ch right when you think you have it half done.

really the car is only worth 500 bucks in tip top condition, i would take a thousand and buy a late 90s merc and unload that one for 250 on someone who wants to learn some mechanical skills.

Mar 04, 2011 | Mercury Grand Marquis Cars & Trucks

1 Answer

I just rebuilt my Sidekick engine, four cylinder 8 valve Sidekick. I had NAPA rebuild my head. After putting it all together I adjust the 1,2,5, and 7 valves at TDC, but when I rotate to do 3,4,6 and 8,...


Did you pump up the lifters with oil? They are what oils the valves. As the motor runs they act as pumps and hydrolic shock absorbers at the same time. They pump oil up through the push rods. So when you try to adjust them they collapse and don't fill back up.

A drill press and push rod is the best way, tighten the pushrod into the chuck. Leave it off. then place the lifter in a small bowl of oil and press it down with the lever on drill. do it over and over until it gets hard to pump.

Aug 29, 2010 | Suzuki Sidekick Cars & Trucks

1 Answer

I need to find out where the push rods are at in


If it has push rods, you will find them under the rocker cover on the top of the engine, they are hiding under the rockers. The rods ride on a lifter that rides on the cam and then they push the valves down, and squirt oil all over everything, a spring brings them back up. The overhead cam eliminated all these extra parts. Lifters, rods, rockers. Hope this helps.

Mar 21, 2010 | 1989 Toyota Cressida

1 Answer

Lifters are knocking and there is a missing in


lifters tick and noise is upper end of engine if lifters are making noise could be from a bad valve,bad lifter ,push rod ,oil pressure,rocker arm - need to take do compression test find out if valve problem and which cylinder is problem also take off valve cover and check for proper oiling of valve head and look to see if and are damaged or loose-------a knocking sound usually comes from lower end of engine,rod knock etc.and thats usually rebuild of engine

Nov 22, 2009 | 1994 Isuzu Trooper

2 Answers

Recurring bent push rods/knocking engine- ideas?


I have seen this myself on a 3.4L (2.8, 3.1, 3.4, 3.5 & 3.9 are all mechanically the same engines). The valves may have a varnish build-up on their stems causing them to stick in the guides.

Apr 26, 2009 | 2000 Pontiac Grand Prix

Not finding what you are looking for?
1993 Ford Explorer Limited Logo

74 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

fordexpert

Level 3 Expert

5546 Answers

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

Answer questions

Manuals & User Guides

Loading...