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Mar 21, 2001 | 11:37 AM

bigsixguy

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Joined: Mar 2001

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From: Strathmore Canada

engine problems

Mar 28, 2001 | 02:30 PM

bigf150

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Joined: Jan 2001

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From: Meriden USA

engine problems

My engine isnt firing in the 2nd cylindar and someone told me it could be bad pushrods? Does this sound like somthing that would make it not fire? Do you have any other suggestions?
Anthony DiPietro
79 F150 Ranger

Mar 28, 2001 | 05:22 PM

oz9609

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engine problems

Check compression. If that is ok then it is electrical (wire, plug, cap) etc.

Mar 29, 2001 | 12:22 AM

jspegg

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Joined: Dec 2000

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engine problems

I just had this same problem a week ago and I got a lot of suggestions from here my problem was my number 2 cylinder was dead it was firing it just wasnt making compression my pushrods are to long and not allowing my valves to seat which cause no compression and no power.I belive some one before me who rebuilt the engine had the heads reworked and they grinded on the valve seats but didnt shave the valve stems which would cause the valve to set further back and cause the pushrods to be to long.Do a compression test if you have no compression put some oil in that cylinder to see if the compression comes up if it dosent then you know its your valves if it does come up alot then its your rings.

Mar 29, 2001 | 06:09 PM

blaxuede

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Joined: Feb 2001

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From: Powell RIver Canada

engine problems

If it's not firing at all in the 2nd cylinder it would have to be electrical. Check your dist. cap and see if the #2 anode isn't burnt out or corroded. If that's ok then check your spark plug wire it could have a slice in it and be shorting out or something.

Mar 29, 2001 | 07:35 PM

bigf150

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Joined: Jan 2001

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From: Meriden USA

engine problems

i already changed the rotor, cap,wires, and plugs so i dont think its that but if there was a hole in the piston would it still run with a lil skip?
Anthony DiPietro
79 F150 Ranger

Mar 29, 2001 | 08:32 PM

ford4604x4

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Joined: Feb 2001

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engine problems

dude this is a stinky problem but the cheapest way to check it out is take off the valve cover and see if the push rod is in place? if not it could be a couple different things.rod could be bent?or the lifter is bad and wont pump up (hydralic)or the camshaft could have a flat lobe at that cylinder?pull the cover and start the motor and watch to see if its moving.if all looks good then it could be the piston with a hole in it but most likley you would have blue smoke out the exhaust.
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Mar 29, 2001 | 08:50 PM

elsmith

Tuned

Joined: Jan 2000

Posts: 326

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From: Phoenix

engine problems

Is the plug firing? I had a brand new set of plugs foul out on me. I don't know what it was the truck backfired and after that none of the plugs fired. Eric

Mar 29, 2001 | 08:52 PM

#10

bigf150

Senior User

Joined: Jan 2001

Posts: 380

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From: Meriden USA

engine problems

thats exactly what happend, it backfired and the plug stopped firing. im pretty sure its sparking
Anthony DiPietro
79 F150 Ranger

Mar 29, 2001 | 11:02 PM

#11

blaxuede

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Joined: Feb 2001

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From: Powell RIver Canada

engine problems

If you had a hole in your piston you would have excessive blow by in the cylinder and would cause your crankcase to pressurize. That situation happened to me. If that's the case you're lookin at rippin it apart and trust me it's not really worth it.

Mar 31, 2001 | 10:00 AM

#12

riskie

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engine problems

[font size="1" color="#FF0000"]LAST EDITED ON 31-Mar-01 AT 11:03 AM (EST)[/font][p]I recently had the same problem with my 460. After checking the obvious and the easiest, wires, cap, vacuum etc. I pull the valve cover and found a broken valve spring. As someone suggested above I would recommend pulling the valve cover. Anyway if it worked for me.

Good luck
Craig

Mar 31, 2001 | 11:40 AM

#13

Ratsmoker

Post Fiend

Joined: Feb 2001

Posts: 6,624

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From: Missouri

engine problems

My buddy used to have an older F-100 with a 352. He kept fouling out the #7 plug, but the motor really didn't run that rough. He took it in to have the compression tested and he had 0psi on the #7. I took his head off and found that the exaust valve just kind of crumbled around the outside but there was no toher damage. I would recommend a compression check.

Mar 31, 2001 | 05:20 PM

#14

bigf150

Senior User

Joined: Jan 2001

Posts: 380

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From: Meriden USA

engine problems

Update on the engine, I did a compression test this morning and compression was good. The problem ended up being the ignition box not being grounded. Thanks for the input everyone.
Anthony DiPietro
79 F150 Ranger

Mar 31, 2001 | 07:02 PM

#15

generator2001

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Joined: Mar 2001

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engine problems

Check compression and then squirt a little oil down ito the cylinder and check it again. If the compression comes up real high you have a bad ring. Just a quick little tip.