- #3417 of 3455
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Re: 65 mph Vibration [jimmyhater]
by jlflemmons
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Sep 28, 2009 (7:27 am)
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Replying to: jimmyhater (Sep 28, 2009 6:58 am)
Sorry, both of mine are 2WD. Lot's of folks on here with 4WD though. I don't know why you would have lateral movement in the drivers side halfshaft unless the CV joint was worn. In and out, yes, got to have that because of the movement up and down, but side to side would indicate a CV joint issue. Can you isolate if the movement is in the inside or outside joint?
Have you checked for worn lower ball joints? You might do a search on "ball joints' in the Jimmy/Blazer topic and see what comes up. I have seen a lot of comments about these in the 4WD. The 2WD uses a different joint and doesn't have the same issue.
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- #3418 of 3455
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Re: 65 mph Vibration [jlflemmons]
by jimmyhater
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Sep 28, 2009 (8:15 am)
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Replying to: jlflemmons (Sep 28, 2009 7:27 am)
The lower ball joints were replaced in 2003 as a result of a GM service bullentin. I recently replaced the upper ball joints when replacing the control arm bushings. How often do the ball joints go bad? They don't have more than 30,000 miles on them. The CV half-shaft has been replaced. The front differential does not have an axle tub on the driver's side. It has a short-stubby shalf with a flange on the end. The flange connects to the CV half-shaft flange.
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- #3419 of 3455
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Re: Wheel Bearing, etc. update #2 [waynea]
by jimmyhater
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Sep 28, 2009 (8:23 am)
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Replying to: waynea (May 14, 2003 6:03 am)
Were you ever able to resolve your vibration issue? I have a 96 GMC Jimmy with the same problems. ...Also had the same problem with the oil cooler lines. ...The vibration may be the cause.
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- #3420 of 3455
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Re: 65 mph Vibration [jimmyhater]
by johnss10
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Sep 28, 2009 (3:22 pm)
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Replying to: jimmyhater (Sep 28, 2009 8:15 am)
Can you tell if the vibration is felt in the steering wheel in addition to seeing it in the mirrors? If so, it would seem likely that it is tire/ bent wheel/hub related.
Also, is the vehicle in 2WD or 4WD at the time?If it's in 2WD, then the extra torque needed to go up hill is not being passed to the front drivetrain, so it's pretty unlikely that the front is the problem in that case.
Any further info?
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- #3421 of 3455
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Re: 65 mph Vibration [johnss10]
by jimmyhater
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Sep 28, 2009 (3:49 pm)
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Replying to: johnss10 (Sep 28, 2009 3:22 pm)
There is a slight vibration in the steering wheel. The vehicle vibrates whether it is in 2WD or 4WD, in gear or not in gear, over-drive or drive. I've had the tires replaced, both sets of tires were road-forced balanced. Technicians at both places said the balancer would pick up a bad rim; all rims are fine. To double-check it, I've replaced all four tires with my spare. It seems that the whole vehicle vibrates, but mostly at the doors and mirrors. The vehicle is so small, it's hard to detect a vibration in any one area.
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- #3422 of 3455
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1995 jimmy running rough
by jaba7530
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Sep 30, 2009 (4:43 pm)
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I have a 1995 jimmy 4.3 vortec that runs rough and the only code I get is for bank 1 sensor 1 o2 sensor. I have replaced both o2 sensors, plugs,wires,cap and rotor, map sensor,tps sensor, fuel pump and spider injector but still runs rough. It seems ok when you first start it and when driving it will spit and sputter like it is running out of gas until you punch it and the it will go for a few minutes and then it starts running rough again. Also a couple of times it would crank excessivly before it started and it seems to be running extremly rich. Can anyone please help,I have about had it.
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- #3423 of 3455
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Re: 1995 jimmy running rough [jaba7530]
by jimmyhater
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Sep 30, 2009 (6:36 pm)
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Replying to: jaba7530 (Sep 30, 2009 4:43 pm)
I had a similar issue. The vehicle would start, but you would have to downshift once the vehicle was warm and it shifted into over-drive (in the 30 mphs). I had to floor it to get it to 55, and it continually lost power. I tried cleaning the intake air sensor with throttle-body cleaner, but didn't notice any difference. I found a problem in the O2 sensor behind the catalyic converter. It looked like water got inside the connection and caused corrosion. I cleaned the connectors for the 02 sensor before and after the catalyic converter and replaced both 02 sensors. However, I never received an engine code as you mention. This fixed the issue. ...I replaced the catalyic converter at the same time since it was rattling, but it had nothing to do with the issue.
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- #3424 of 3455
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Re: 1995 jimmy running rough [jimmyhater]
by jaba7530
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Oct 01, 2009 (5:09 am)
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Replying to: jimmyhater (Sep 30, 2009 6:36 pm)
I have replaced both of the sensors and cleaned the connections and put dielectric grease in connectors but no luck
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- #3425 of 3455
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Re: 1995 jimmy running rough [jaba7530]
by jimmyhater
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Oct 01, 2009 (5:28 am)
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Replying to: jaba7530 (Oct 01, 2009 5:09 am)
If the 95 is like the 96, then I believe you have 4-02 sensors. I would be sure to check all sensors and use a multimeter to ensure you have voltage at each connection. You might have a broken connection somewhere in the wiring.
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- #3426 of 3455
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Re: 1995 jimmy running rough [jimmyhater]
by jaba7530
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Oct 01, 2009 (5:36 am)
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Replying to: jimmyhater (Oct 01, 2009 5:28 am)
The 95 only has 2 sensors one before and one after the cat.
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