SuperMotors.net Forums
|
|
 Posted:6/2/2017 18:35 |
|
|
Hey all, I recently bought an 01 crown vic lx with 128k on it. I did a full tran fluid replacement (drained torque converter) and filter as well as a oil change. Car seemed to be running fine for about 2 weeks. One day after traveling 45 miles home from work on the highway I pulled off onto my exit and while accelerating I notice the car start to buck just a little, but it went away after only a second or 2. Driving the car a couple of days later I noticed it again after pulling off the freeway turning on the street my job is located. Kept driving the car for a few days with no issue. Couple day later I notice the bucking again while going to the store about 15 minutes away and this time the bucking lasted a bit longer, about 15 seconds while I held my foot at a consistent throttle position. Then today, while coming home from work, I accelerated relatively hard onto the entrance of the freeway as some chump was up my ass. The car started bucking soon after and pretty much all the way home. I stopped into a parking lot and looked under the car. There was some fluid at the differential where the drive shaft bolts to the yoke for the pumpkin. I thought that was a bit unusual but perhaps the bucking had caused some fluid to spurt out of the differential input seal.
Just to add, when I would go over a bump at slow speed the car seemed to should clunkier than usual. I also felt that there was more wiggle in the seat of my pants then usual.
So here are my thoughts. Do I have a bad 'Coil on plug'? Is the torque converter shot? Is the trans clutch shot? Do I have a bad universal joint in my driveshaft? Is the rear end toast?
I love these cars, I used to own an 87 and recently bought this 01 as well as a 08 CVPI. I used to work as a mechanic when I was younger, no internal engine stuff but I've replace engines as well as transmissions a time or 10. Currently I don't have a garage and have to do all my work shade tree style. That, and I'm not quite as young as I used to be. Help form an expert would be greatly appreciated. |
|
cbourquin
 |
|
• Emory, TX, USA |
|
• Registered on 4/9/2017 |
|
• 7 posts |
|
|
|
|
Posted:6/3/2017 04:58 |
|
|
|
does it buck/vibrate at excelleration? If it has an on/off switch for the overdrive on the gear shift,try turn it off and see what happens. |
|
|
|
|
Posted:6/3/2017 15:43 |
|
|
You could have the coils going out, but you won't know until it throws a code.
The bucking should not cause the pinion seal to spurt fluid, that could just be a bad seal. A blocked vent(on top of the drivers side of the housing) can cause some to come out the axle seals or the pinion seal if pressure builds up and can't vent in the right place. |
|
|
|
|
Posted:6/4/2017 21:00 |
|
|
|
I did see the check engine light come on for a second about half way into a 45 mile drive. It went out and did come back the rest of the way home. I have one of those crappy code readers that won't show the fault history, or if it does I don't know how to pull it up. Hoping it's just a coil. Any tests I can run to verify one way of the other? |
|
|
|
|
Posted:6/4/2017 21:03 |
|
|
|
Yes, it bucks on acceleration. I did turn the O/D off but I can't remember what happened. I want to say it was still bucking but I'll have to go for another test drive and verify. |
|
|
|
