Night from hell with my B2!!

[jkufen]

Well any other suggestions on what it could be? I changed the spark plugs and I am putting new exhaust on. The issue started last week when I found that my cats were clogged so I removed the cats and then I drove it a few days and then it did it again. A buddy of mine said it had to be the plugs so I changed the plugs. Now when I am driving once I hit about 3000 rpms it starts to sputter and shake. If i recall right it only does it when you are moving not when you push the clutch in and rev so im guessing it only does it when there is a load on the engine. Any ideas? I am at a loss.

 

[LIMA BEAN]

Well any other suggestions on what it could be? I changed the spark plugs and I am putting new exhaust on. The issue started last week when I found that my cats were clogged so I removed the cats and then I drove it a few days and then it did it again. A buddy of mine said it had to be the plugs so I changed the plugs. Now when I am driving once I hit about 3000 rpms it starts to sputter and shake. If i recall right it only does it when you are moving not when you push the clutch in and rev so im guessing it only does it when there is a load on the engine. Any ideas? I am at a loss.

Ever check that fuel regulator?

 

[jkufen]

No I have never checked it. I don't even know where it is or how to check it.

 

[LIMA BEAN]

No I have never checked it. I don't even know where it is or how to check it.

http://www.therangerstation.com/forums/showthread.php?t=85131

Its the round part with the yellow dot. If it fails the little vacume line will suck fuel straight into the intake and most goes down the rear plenum runner into the rear two cylinders and it can hydrolock the rear two, cause raw fuel in the exaust system(fire), melt cats, fill up the brake booster ect.

 

[LIMA BEAN]

Whats the latest on this?

 

[jkufen]

Well I changed the wires, plugs, ignition coil, and the module underneath the distributor, I changed the exhaust and I unplugged the o2 sensor because of the exhaust change. After all that the only thing left was the fuel pressure regulator. My buddy pulled off the regulator and blew into it. He wasn't able to blow any air through the regulator but in the middle of him blowing the gas actually shot backwards into his mouth. This showed us that the regulator was not good and was back feeding the engine. Also my buddy said that when the regulator goes bad it can dump fuel into the engine which i believe was my issue because you can smell the gas fumes coming out of the exhaust. So I will replace this regulator on Saturday and update yall if it fixes my issue or not.

 

[LIMA BEAN]

Well I changed the wires, plugs, ignition coil, and the module underneath the distributor, I changed the exhaust and I unplugged the o2 sensor because of the exhaust change. After all that the only thing left was the fuel pressure regulator. My buddy pulled off the regulator and blew into it. He wasn't able to blow any air through the regulator but in the middle of him blowing the gas actually shot backwards into his mouth. This showed us that the regulator was not good and was back feeding the engine. Also my buddy said that when the regulator goes bad it can dump fuel into the engine which i believe was my issue because you can smell the gas fumes coming out of the exhaust. So I will replace this regulator on Saturday and update yall if it fixes my issue or not.

So sounds like things like in post #34 were happening? Pull the line off your brake booster and sniff in there too, if gas got in there it will ruin the diaphram and you could crash.

 

[jkufen]

I have not checked the brake booster yet but when I go back to my buddies shop saturday to work on it I will definitely check the brake booster. There is one on my 85 ranger parts truck so I might just steal it and replace mine just to be safe.

 

[jkufen]

but yes I havent checked the brake booster but everything else in post #34 matches my symptoms

 

[LIMA BEAN]

but yes I havent checked the brake booster but everything else in post #34 matches my symptoms

Lets hope this is the fix and just wondering which plug was stuck? If this is indeed the problem an unfortunate consequence sometimes is that gas washes down the cylinders ( mostly the rears) and scores the cylinder walls. If this cures it you may want to do a compression check later to see if the rear cylinders give you a lower reading. The reason I say that is because if they did get scored the blow by will give you increased crankcase pressure and also carbon up your combustion chamber/ valves and send oil downstream to your O2 sensor and cat.

 

[jkufen]

#5 was the plug that broke off, the middle plug on the passenger side. Hopefully I will fix the regulator and the engine has not had time to cause any further damage but I will see if my buddy has a way of running a compression test on the engine and see.

 

[LIMA BEAN]

#5 was the plug that broke off, the middle plug on the passenger side. Hopefully I will fix the regulator and the engine has not had time to cause any further damage but I will see if my buddy has a way of running a compression test on the engine and see.

If he dont have a compression tester all parts stores have them for loan. First and foremost dis-able the ignition ( coil wire) and pull ALL the plugs. A friend of mines son lost his truck, burnt down a shed and was himself caught on fire because of this.

 

[jkufen]

Will do thanks for the advice

 

[Shran]

Sounds like you found your problem.

I personally wouldn't bother with the compression test. You're dealing with a 27 year old engine that likely has some wear...if it runs, that's good enough. Burning a little rich for the short period of time that yours did won't hurt it. It takes a LOT of fuel to wash the cylinder walls to the point where they are damaged.

Don't worry too much about the brake booster, either... if it fails, the worst that will happen is you won't have power brakes. Been there a few times but it has always been caused by a leaking master cylinder, not fuel contamination. Cross that bridge if and when you get to it.

 

[jkufen]

Yeah im gonna put the new regulator tomorrow and see if that fixes my problem. Ill probably drive it like it is as long as it runs fine. If it doesn't then ill work on compression test and keep going down the list.