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  #16  
Old 01-05-2016, 06:56 AM
tomw0 tomw0 is offline
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Default Re: 1996 2.3 Engine Bucking under load

Bucking is likely one of three things: plugs/wires, EGR, or fuel delivery.
Have you checked fuel delivery volume? Could be the sock in the tank is partially plugged.
Bad plugs or wires will allow/cause the misfire under 'heavy load', such as hill climbing in higher gears. EGR can cause bucking, test by plugging the vacuum line with a golf tee and going for a spin.
tom
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  #17  
Old 01-06-2016, 12:38 AM
MasterJax MasterJax is offline
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Default Re: 1996 2.3 Engine Bucking under load

*Bump* Could this be a worn out Clutch? Clutch has over 100,000 and I was rough on it when I first got it around the 75,000mark. It also grinds when you shift at higher RPMs. Any ideas?
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1996 Ford Ranger 2.3Liter Inline 4 cylinder 8 Spark 5spd Manual Transmission 227,486 Miles
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  #18  
Old 01-06-2016, 06:57 AM
tomw0 tomw0 is offline
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Default Re: 1996 2.3 Engine Bucking under load

The only way a clutch could cause 'bucking' is if it were slipping and grabbing in a very quick manner. Not a likely scenario as a clutch that slips will continue to slip until you either ease off on the gas pedal to let it 'catch up', or you shift gears, either up or down, and re-engage. Then it may slip all over again...
tom
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  #19  
Old 01-06-2016, 09:25 AM
POS Racing POS Racing is offline
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Default Re: 1996 2.3 Engine Bucking under load

Have you clean out the MAF and the intake temp sensor that is in the intake tube??

While I had it apart I also cleaned the throttle body.

Also EGR is easy to test have you tested it??


Parts guy said to use this on the MAF (FWIW)
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  #20  
Old 01-06-2016, 11:21 AM
MasterJax MasterJax is offline
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Default Re: 1996 2.3 Engine Bucking under load

Quote:
Originally Posted by tomw0 View Post
The only way a clutch could cause 'bucking' is if it were slipping and grabbing in a very quick manner. Not a likely scenario as a clutch that slips will continue to slip until you either ease off on the gas pedal to let it 'catch up', or you shift gears, either up or down, and re-engage. Then it may slip all over again...
tom
I either Downshift or let off the Throttle when bucking occurs and the bucking seemingly goes away. From what you described it sounds like it could be the Clutch.

I haven't done a whole lot with the MAFS since I can obviously see that there's no dirt on it. Is there something that I can't see that would be causing this issue?

I haven't given the EGR test a test drive yet because of the 1ft of snow and ice outside(my truck is not 4wd) but that will be my next test before I take Rick into the shop.
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1996 Ford Ranger 2.3Liter Inline 4 cylinder 8 Spark 5spd Manual Transmission 227,486 Miles
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  #21  
Old 01-07-2016, 07:20 AM
tomw0 tomw0 is offline
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Default Re: 1996 2.3 Engine Bucking under load

Most times, clutch slippage can be detected by driving ~45 mph, in 4th gear, and flooring the gas pedal. If the clutch is slipping, the rpms will increase faster than the truck velocity will increase, i.e., the engine revs but the truck doesn't seem to be accelerating.
It does not show up as 'bucking', if we are using the word the same way, as in jerking back and forth as if the engine were shut off for a fraction of a second, and then turned back on.
Inside the MAF sensor are two very thin wires inside a protective cover. To see them, you have to remove the cover. The wires are very thin and fragile, and just a tiny bit of schmutz will make the MAF erratic and cause engine hesitation and jerking upon acceleration. The rest of the MAF may look clean as a whistle, but you have to see the wires clearly to know if the MAF is 'dirty'.
tom
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  #22  
Old 01-08-2016, 04:57 PM
MasterJax MasterJax is offline
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Angry Re: 1996 2.3 Engine Bucking under load

Quote:
Originally Posted by tomw0 View Post
Most times, clutch slippage can be detected by driving ~45 mph, in 4th gear, and flooring the gas pedal. If the clutch is slipping, the rpms will increase faster than the truck velocity will increase, i.e., the engine revs but the truck doesn't seem to be accelerating.
It does not show up as 'bucking', if we are using the word the same way, as in jerking back and forth as if the engine were shut off for a fraction of a second, and then turned back on.
Inside the MAF sensor are two very thin wires inside a protective cover. To see them, you have to remove the cover. The wires are very thin and fragile, and just a tiny bit of schmutz will make the MAF erratic and cause engine hesitation and jerking upon acceleration. The rest of the MAF may look clean as a whistle, but you have to see the wires clearly to know if the MAF is 'dirty'.
tom
Thanks Tom!

For clarification purposes, the truck doesn't spit out higher RPMs with the throttle to the floor, nor do a get a flashing CEL during the bucking as some users have mentioned. The Bucking mainly happens in 2nd, 4th, and 5th with 5th being the worst.

Guess what! It snowed again!!
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1996 Ford Ranger 2.3Liter Inline 4 cylinder 8 Spark 5spd Manual Transmission 227,486 Miles
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  #23  
Old 01-11-2016, 06:49 PM
MasterJax MasterJax is offline
Ranger Rick
 
Join Date: Dec 2015
Posts: 28
Default Re: 1996 2.3 Engine Bucking under load

FIXED!! Whoever did the Spark Plug Wires before I did screwed up the order. Downloaded a diagram online and fixed the issue within 5 minutes.

Thanks!
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1996 Ford Ranger 2.3Liter Inline 4 cylinder 8 Spark 5spd Manual Transmission 227,486 Miles
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