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1995 firing issues       #: 2310
 Moderated by: NoPower, Mike69, MaDMaXX,
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 Posted: Sat Jan 16th, 2021 12:44 pm
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Briansmith1167@yahoo.com
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The truck waS running like a dream when I bought it 3 years ago. I went ahead and gave it a quick tune up by replacing the plugs, wires and it ran great for 2 years. Here recently it started to miss so I did the same. This time I replaced both coil packs, all the wires,, all 8 plugs and the rear oxygen sensor.  Any idea as to what may be causing this problem? I need to figure this out quickly as this is my daily driver and I dont want to drive it missing like crap. Please help

P.S. I did change the plugs and checked the firing order to make sure that I had everything in place, I double checked it to make sure thanks

Last edited on Sat Jan 16th, 2021 12:50 pm by Briansmith1167@yahoo.com



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 Posted: Sat Jan 16th, 2021 02:05 pm
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Briansmith1167@yahoo.com
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Briansmith1167@yahoo.com wrote:
The truck waS running like a dream when I bought it 3 years ago. I went ahead and gave it a quick tune up by replacing the plugs, wires and it ran great for 2 years. Here recently it started to miss so I did the same. This time I replaced both coil packs, all the wires,, all 8 plugs and the rear oxygen sensor.  Any idea as to what may be causing this problem? I need to figure this out quickly as this is my daily driver and I dont want to drive it missing like crap. Please help

P.S. I did change the plugs and checked the firing order to make sure that I had everything in place, I double checked it to make sure thanks
I did put it it on an OBD ll reader and it showed a misfire on cylinder 3-4 the plug wires that are very hard to get to. So I went to Bristol and bought the proper plug wires with the clips to make it easier to install but I still have the same problem. Any help would be greatly appreciate. 
Sorry if I double posted.

Last edited on Sat Jan 16th, 2021 02:07 pm by Briansmith1167@yahoo.com



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 Posted: Sat Jan 16th, 2021 02:29 pm
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JAMMAN

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Replaced 8 plugs, you must have the 4 cylinder which should be a fine running truck!

Misses are usually caused by one of 3 basic things, spark/fuel/compression. Usually may I add.

The firing order doesn't change so if it started missing before you changed anything you should be good.

That 4 banger is easy to manage. Since you are familiar with the spark plugs, borrow/rent/buy a compression checker. Pull the supply wire to the coil packs so you have no chance of starting and measure the compression in all 4 cylinders.

People may have different opinions but in mine it is more beneficial to have all cylinders be within a certain percentage of each other than having ultra high new engine compression.

If they are that is not your miss.

The rear oxygen sensor will make no difference it is only used to tell if the cat is doing its job. The first one (upstream) is the important one.

Next I would check injectors. If your scanner has spotted one particular cylinder, the easiest thing would be to switch the injector between a cyl that is firing good and the misfiring one. Reset the code, start it back up for a while see if the cylinder misfire moves also. If it moves then replace that injector. If you lived in Ohio I would hand you a few :)

Start there, the problem usually rears its ugly head during these diagnostics. Please report back your findings for the benefit of all!



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 Posted: Sat Jan 16th, 2021 05:02 pm
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The only problem is the 3-4 cylinder are behind the manifold and a pain in the arse to get to. Like I said the truck was running fine when I started to tune it up and I cant see it losing compression just by setting there getting the wire, plugs, etc,,, changed. I maybe wrong but as soon as I can get a compression tester I will do what you suggest and let you know the outcome



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 Posted: Sat Jan 16th, 2021 05:14 pm
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Did you use this diagram for plug wires?

I re read the message, I thought you said it was running fine, started to miss, you replaced a bunch of stuff, it still missed?

If that is the case and the plug wires are correct AND it ran pretty much the same before and after you replaced plugs/coils/wires then time to look at compression and injectors.

If it is electrical and you drive it with a miss, it will get raw gasoline to the cats and they will clog up in a very short time.

If you have some tools and no compression checker swapping the injectors would tell you if it was the injector or "anything else".

if it is anything else compression is the way to go.

You can check compression from either plug in the cylinder, maybe the left side is easier to get to than the right?



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 Posted: Sat Jan 16th, 2021 05:25 pm
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Briansmith1167@yahoo.com
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The firing order doesn't change so if it started missing before you changed anything you should be good.




Yes it was missing that was why I changed everything. But the last time I changed the plugs I used NGK plugs and when I removed them they had no tip-in contact point. I thought this was odd. So I had to go the cheap way and buy acdelco plugs against my better judgement.. and yea I used that diagram to get the firing order right. I have no catalytic converter. Just a muffler lol. Someone cut it off and sold it before I bought it.
I really hope this isn't a compression issue cause I'm not the best mechanic and when it comes to getting to inside the motor I'm lost.



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 Posted: Sat Jan 16th, 2021 05:28 pm
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Is there anyone close to 27664 area code that would be willing to make a little extra money? I'm not rich but this truck is all I have and I'll pay what I can to get itfized.



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 Posted: Sat Jan 16th, 2021 05:29 pm
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 Posted: Sat Jan 16th, 2021 07:32 pm
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Great news guys/gals! I went to Auto zone and put it on an OBD ll reader for the 2and time(the first time I didn't erase the codes)this time I erased all of the codes and re-ran a check and the only code that showed was the number 4 misfire! Which means the spark plug wire is not on all the way in completely! Thank goodness-I was worried that it would be the injectors or the compression and I did not want to get into that. 
Just for you to know, when I bought this truck the dash speedometer had stopped at 200435k and I drove it for 3 years keeping the oil changed, plugs, wires,etc,,,.
Now the back coil was zipped tied onto the motor cause someone had stripped the screws. When I installed the new coils I had drilled and tapped new holes and made sure that they were installed correctly. This is one awesome truck. I went outside a few minutes ago and fooled around with the number 4 plug wire and wah-lah! Purrs like a cat again!. 
A word to the wise-dont give up on a ford. It may take some time and a little money but they will run forever. I probably have over 300k on this truck and still running strong.
Thanks to all who helped me out. Much appreciated!



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 Posted: Sat Jan 16th, 2021 07:40 pm
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Just in case someone knows someone that knows a guy-7'm looking for a 1995 Toyota pickup 4 x 4 w56 5 speed tranny with bell housing and transfer case. I don't really want a rebuilt one just one out of a wrecked truck. No rebuilt job or remanufactured tranny. Just a basic tranny that will work in my late Dads truck!  It would mean a.lpt to me to get this thing back on the road



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 Posted: Sat Jan 16th, 2021 08:20 pm
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I gots no toyotas, sorry.

Glad you got it working, one of mine has over 250K. I think you actively have to neglect these trucks to hurt them. Else they will run forever.



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 Posted: Tue Jan 19th, 2021 11:21 am
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Briansmith1167@yahoo.com
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Bad news! The truck ran well until it warmed up then the same thing. It idles at around 500 and will stall out unless given gas. I did the following: removed each wire one at a time from the coil and laid it next to the coil and went in and started the truck and got sparks. I did this for each wire and each one sparked. Now I assume this means that the the spark plug wires are attached to the plugs and working. But, I got to thinking that I should have held the wire to the plug and not the coil since the coil is new. Which i hope I don't have to do cause number 4 is a pain to get on and off.. but I also cleaned out the mass air flow and the nasty IAC valve and it is running a lot better  so I hope that I'm right when I say that maybe I need to replace the IAC and/or the mass air? Or maybe just shoot it? I hate working on vehicles in the cold-my hands are like a leppers with all of the cuts and sores. And each time I start to work on one I get bloody like rocky! There has to be something simple. I mean I put $27 I to the plugs, $29.99 I to the wires, $59.99 each into the coils, $61.00 into the rear o2 sensor that was useless as the truck has no cat! About 6 bottles of gas treatment/injector cleaner. And 2 cans of brake cleaner to clean the IAC/maf. So I have already put enough I to this truck to not find the issue. 
I guess I'll go out and remove the wires and rei stall the old ones to check and see if the plugs are firing. If not then I guess I'll go borrow a compression checker and check each cylinder-please keep in mind that I'm driving this truck daily.



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