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Thanks. Coolant pressure tester I can rent at Autozone, will do. Hole in piston -- should not it produce noticeable gases escaping thru PCV valve and/or oil dipstick pipe?

Thanks. Looks like Autozone/Advanced/OReylly don't have it for rent, I'll keep looking Question: given the cylinder does not have any pressure at all, if it is a bad valve -- will I be able to verify it after opening just the valve cover?

Well, here are the cylinder compression test results: #1 - 180 psi #2 - 182 #3 - 0 (manometer needle did not even move, tested many times with two different manometers) #4 - 175 #5 - 180 #6 - 173 I think this points to blown head gasket, however I am not sure. If it was cracked piston or...

Ah, and yes, I've replaced spark plugs less than year ago.

One of main reasons I suspect head gasket is sound (see video) when idle -- harsh "chuff-chuff-chuff" with frequency close to one cylinder sparks. It happened instantly, so I don't think it's clogged fuel filter. Overheating, low coolant, water in exhaust -- I could not tell because after the...

'05 XLT V6, ~85k. Truck was suffering from P0430 (Catalyst system efficiency below threshold (Bank 2)) and moderately uneven idle for few years, but yesterday -- peaceful local driving, stopped at intersection, when started moving (no noticeable "pop" or "clang" or whatever) -- engine shaking...

This thread is listed in "List of useful threads". Am I the only one who does not see pictures in start post? No matter what I try -- there is no pics.... :(

2010 Ford Explorer XLT, V6 2WD, ~19k (yes thats right, under 20k), gear shift lever is on the floor (center console), recently developed same problem -- stuck in "park", no "click" when I press brake pedal (brake lights work). Have to fidget it for minute or two before it finally...

OK, just to conclude this. I've spotted at local dealership a 2010 (last year of the 4th generation) Explorer XLT with incredible for its age 14 kmiles mileage. I could not resist the temptation. So, after short but fierce battle with the salesman (which I had shamefully lost) I became a next...

It's 36 mm. Also: http://www.explorerforum.com/forums/index.php?threads/what-size-and-what-direction-is-the-fan-clutch-nut.407877/#post-3324783

I must add, I'm really impressed by the survivability of this truck. Half-dead fuel pump, almost completely blocked fuel filter -- and I was still able to move it! I think it's the "blessing of being the 1st gen". Manufacturer did not have massive exploitation experience, and did not realize...

Yeah.. plus, I'll hopefully get the dashboard fuel gauge working again... for free. i.e., with no additional efforts to fix it! :)

With new FPR after 13 quick primings (engine is off) pressure builds up to ~17 psi and stays there after 10 more primings. When stopped priming, drops to zero in same 25 seconds. Started the engine, at idle pressure rises to ~20 psi and stays there, dropping 1-2 psi while revving. Looks like...

I took out the fuel filter -- it's clean. Clean gasoline comes out from both ends, air is easily blown thru. Installed filter back in place, conducted fuel pressure check at test port: After 12-13 quick primings (engine is off) pressure builds up to 20-22 psi and stays there after 10 more...

I agree, but just wanted to mention that Haynes manual says that the manufacturer expect the fuel filter to last whole lifespan of the vehicle. Sounds like barely justified bragging to me :)

trushtruck, 2stroke, thanks for the advice, if I decide to save my Explorer and replace the fuel pump, I would rather go by dropping tank. Replacing the whole assembly AND cutting the access panel along the way, of course. Reason: I regularly feel gasoline smell in the cabin after sharp right...

Well, unfortunately, it's not solved. Today's driving: about 45 miles of mixed local/highway was "normal", and then the symptoms came back. Not as severe as it was, it seems, but the problem is there. I suspect that the dying fuel pump throws its decaying guts into the line and clogs the filter...

OK, so I replaced the fuel filter and truck is running as before. I now doubt that it's running "normal"... but "as before". No problem accelerating anymore... at least during my quick 5 miles test drive. I don't quite understand how can it be running with fuel pressure so low... or probably I...

So, I think it was both: dying pump, AND extremely clogged filter. 1. I disconnected the fuel filter and measured fuel pressure on the filter's exit -- zero or almost zero. 2. I took out the filter -- it is severely clogged, I can not blow air thru it at all. New filter could be blown thru...

Thanks, Nate... Do I simply unbolt the return line from FPR? Haynes manual only says "disconnect", factory manual talks about special tool with "fingers", which I don't see where to insert, even if I had one. Factory manual probably talks about different engine, mine is early 4.0L pushrod.

OK, I've got half day today and whole day tomorrow... So, fuel pressure check. Connected the gauge -- reading zero. Turned ignition on (hearing fuel pump humming) couple of times -- pressure reading zero. I checked the gauge, and checked the gauge together with connecting hoses (using my...

I didn't mention it here (was in the original post), I cut off the boxed end of the wrench so I was able to put an extension pipe one it. Which was really needed in my case - the nut required about 300 pounds-per-foot of torque to undo it. Luckily, after that it was easy, almost by bare hand.

Literal translation would be "issledovatel'". Similar, by meaning, to both "explorer" and to "researcher". More adequate might be "razvedchik" -- same as recon, reconnaissance.

Yeah... I was considering putting the sign "Empty and Unlocked" on it, but we had moved from there soon... into considerably better location :)

I tried different sets, all the same, as you said -- garbage. I ended up buying (relatively) cheap jumbo wrenches set (regular thick metal wrenches, not those special for fun clutch nut) from Harbor Freight tools, which has 35 mm wrench in it. I grinded it to 36 mm (exact size of my fan clutch...