Misfire on XJR
#41
#42
Ok so here is the good news. We didn't skip any teeth. I went home at lunch today and she fired right up. No engine codes, but the RPM was high, @ 1200 RPM at idle. There was also a strong gas smell when idling.
Did I mention I replaced the coolant sensor? The temperature gage was not registering anything so I think the after market sensor I got isn't working, which would account for the rich mixture and the higher RPM.
Calling the dealer to get the part. I'll update you all later.
I really mean this when I say THANK YOU. Since there is very little information on this car except here, it is great know I can come here and get ideas and opinions and that I'm not the only one with problems.
Did I mention I replaced the coolant sensor? The temperature gage was not registering anything so I think the after market sensor I got isn't working, which would account for the rich mixture and the higher RPM.
Calling the dealer to get the part. I'll update you all later.
I really mean this when I say THANK YOU. Since there is very little information on this car except here, it is great know I can come here and get ideas and opinions and that I'm not the only one with problems.
#44
Thanks Jondyak - I'll look at that tonight as well. I did while I had it torn down replace all the seals on the valve covers including the spark plug dounuts. But who knows one or two may have been pinched.
#45
She Lives
Thanks All.
Went to the dealer this afternoon and picked up a new temperature sending unit. Put it in, topped off the coolant and fired her up.
She purs like she did when we bought her 4 years ago.
Onto the next problem.
ABS/Traction problem - Could be dirty wheel sensor.
Loud rumble from the rear. I'm thinking hubs or bearings.
Went to the dealer this afternoon and picked up a new temperature sending unit. Put it in, topped off the coolant and fired her up.
She purs like she did when we bought her 4 years ago.
Onto the next problem.
ABS/Traction problem - Could be dirty wheel sensor.
Loud rumble from the rear. I'm thinking hubs or bearings.
#46
Well, I'm more than happy to be wrong.
The rattle may be a lower shock bush. There's a whole thread on it but you make the diagnosis by holding the bush while someone bounces the car - you can feel the clunk.
The idle will be all over the place for a while. You're supposed to do a 'drive cycle' so the car learns the mixture etc. but I get the general impression from other members that it will sort itself out anyway.
The rattle may be a lower shock bush. There's a whole thread on it but you make the diagnosis by holding the bush while someone bounces the car - you can feel the clunk.
The idle will be all over the place for a while. You're supposed to do a 'drive cycle' so the car learns the mixture etc. but I get the general impression from other members that it will sort itself out anyway.
#47
#49
Well, I'm more than happy to be wrong.
The rattle may be a lower shock bush. There's a whole thread on it but you make the diagnosis by holding the bush while someone bounces the car - you can feel the clunk.
The idle will be all over the place for a while. You're supposed to do a 'drive cycle' so the car learns the mixture etc. but I get the general impression from other members that it will sort itself out anyway.
The rattle may be a lower shock bush. There's a whole thread on it but you make the diagnosis by holding the bush while someone bounces the car - you can feel the clunk.
The idle will be all over the place for a while. You're supposed to do a 'drive cycle' so the car learns the mixture etc. but I get the general impression from other members that it will sort itself out anyway.
The rattle is really more a rumble like bad tires, but it isn't tire related. My buddy and I are going to put it up on jack stands tomorrow and spin the rear wheels. I'm really thinking bears, but fear it may be the differencial.
I have already checked the shocks there are fine.
The idle has already settled down, the car is running like a dream. It's starting fine and accelerates like it did when we first got it.
#50
#51
Hey guys, So yesterday I put the rear end up on Jack stands, ran the engine about 1200 rpm. Listened to the differential and ther rear hubs.
There is a loud gear whiring noise from the differential. The sad part is there are no parts available to rebuild the differential that I can find.
So I've been searching the net and found one on eBay but it has more milage than my current one.
Before I jump the gun here and spend money I don't need to, how much play is there when you jack up the rear end and start turning one wheel, before the other wheel starts to move?
There is a loud gear whiring noise from the differential. The sad part is there are no parts available to rebuild the differential that I can find.
So I've been searching the net and found one on eBay but it has more milage than my current one.
Before I jump the gun here and spend money I don't need to, how much play is there when you jack up the rear end and start turning one wheel, before the other wheel starts to move?
#52
#53
#54
Thanks guys. I got the bearings ordered yesterday. I'll get under the car this week and check out the differential oil level and vent.
Just curious though, why would the plugged vent cause the oil to get foamy? A plugged vent would cause pressure increasing inside the case so I can understand the oil being forced out around the seals. The foaming comment has me stumped though.
Just curious though, why would the plugged vent cause the oil to get foamy? A plugged vent would cause pressure increasing inside the case so I can understand the oil being forced out around the seals. The foaming comment has me stumped though.
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