Engine fail

[piollo]

Hi all ... I'm from Spain and do not understand English very well ... I am translating it with google ... you excuse me for translation errors ...
This is my problem ... lately the car has me crazy ... I put the snorkel craft in the footsteps of a member of this forum ... and one day it rained water came it stopped ... I realized why the engine failed a little, I cleaned all the intake circuit and the engine began to work well ... then the engine has worked well in a while ... then a few weeks my explorer engine splutters a lot ... is not fine ... as if he is missing one or two cylinders .. I changed the coil on the other the same but wrong too ... I have changed spark plug cables site ... and works the same ... I think they are the spark plug wires ... who do you think?? I have to put new spark plug wires?
Another question ... I was thinking of buying an OBD-II tester for my Explorer ... which you can recommend to me??? which works best? how much it costs?
Best regards

 

[piollo]

up!!!

 

[imp]

Which engine do you have? If I understand correctly, your engine does not run smoothly. The engine got wet with water? Neither V-8 or V-6 had a distributor, so rule out wetness in distributor cap.

Any build-up of dirt at either end of spark plug wires, if wet, can result in loss of spark voltage at the plug, dirt at the plug end of each wire being most likely to cause trouble than coil end of wire. At plug end of wire, dirt can short voltage to the cylinder head, causing the cylinder to misfire.

Hope this helps you. Let us all know. imp

 

[piollo]

My esplorer have a V6 4.0 EFI

 

[piollo]

I have put new spark plugs ... I cleaned the coil ... I cleaned the connectors spark plug wires .. and the car still fails ... I thought that the coil may be damaged ... or spark plug wires are not in good condition ... thus should buy a new spark plug wires ... you can advise me something else about this breakdown?
thank you very much

 

[SoNic67]

I put the snorkel craft in the footsteps of a member of this forum ... and one day it rained water came it stopped

Does that means that you sucked water on the air intake?

 

[piollo]

Yes.... but the car was stopped...

 

[piollo]

Up!!

 

[bluestream1]

How many KM on the engine? Have you checked the compression? Water can cause rust, and thats not good...

 

[jremington59]

I assume the CEL is on? If so is there no where there to get the reading?

 

[piollo]

What´s CEL??

 

[piollo]

I put new coil ... new spark plug wires ... new spark plugs ... and the engine still fails ... problem can be idle valve?

 

[piollo]

How many KM on the engine? Have you checked the compression? Water can cause rust, and thats not good...

the engine is changed less than a year .... the engine is second hand and I do not know how many miles has ... the engine was fine until a couple of months

 

[piollo]

I get the impression that the engine failure is an electrical problem ... I think sometimes fails the ignition of any cylinder

 

[piollo]

I read that if it fails the idle valve can alter engine performance ... my car sometimes stops with the engine idling ... engine idle sometimes becomes unstable ... and when I accelerated the car I feel that the engine has a bug in the combustion of some cylinder ...

 

[kert0307]

CEL = check engine light on dash

If your engine did suck in water you need to do a compression test to make sure the cylinders and pistons are still in good shape. Water is not compressible and can cause problems if too much is sucked into the motor.

The idle valve may be bad also because it may have gotten gunk in it when you sucked water in.

You need to get a top for your snorkel so water can't rain in.

 

[Sedition]

Sohc?

Hello Piollo.. First I will ask you this question. Do you have the same engine that you see in the picture below?

Also have you checked the "Air Filter" after water got inside? did the air filter look like a wet sponge?

 

[piollo]

CEL = check engine light on dash

If your engine did suck in water you need to do a compression test to make sure the cylinders and pistons are still in good shape. Water is not compressible and can cause problems if too much is sucked into the motor.

The idle valve may be bad also because it may have gotten gunk in it when you sucked water in.

You need to get a top for your snorkel so water can't rain in.

CELL is off

I know the problem of compression of the water ... I bathed the explorer in a puddle and bent a rod.

That's why I had to change the engine

I'm waiting to bring a cyclonic filter snorkel head ... but is costing me a while to find one that fits-75mm tube ...

you recommend me to change the idle valve?

 

[piollo]

Hello Piollo.. First I will ask you this question. Do you have the same engine that you see in the picture below?

Also have you checked the "Air Filter" after water got inside? did the air filter look like a wet sponge?

No.. My engine is a 4.0 EFI OHV

I checked the air filter and just licked the bottom ... air filter is well

 

[Joe Dirt]

It certainly wouldn't hurt to get a new IAC valve. If it did get wet, it is possible that it is sticking. I don't think I'd bother cleaning it, it's old and had some issues before. If you can get a Motorcraft part, use that- probably isn't easy to get parts there, so no sense in using a might-be-ok cheaper part...

Also- did you clean the MAF sensor?