98 ford ranger shaking. help!
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98 ford ranger shaking. help!
i am new to this forum (first post) so forgive me if this is post is out of place. I have a 98 ranger xlt 4.0 v6 automatic 2wd with almost 158k miles. I recently replaced spark plug wires (planning on replacing plugs soon) put in a new fuel pump and filter, had a basic service done, (all fluids are good incl. transmission) fixed an injector wire, fixed a cylinder #3 misifire and a few other tlc deeds.
I have been experiencing a bit of shaking, feels like its coming from the engine compartment, but my incling is that its transmission related. the shaking occurs once i get up around 30-35mph and also around 40-50mph. it goes away when i let of the gas and also goes away when i accelerate. it does not happen all the time. and happens more often than not when im on an incline. I heard from a friend that the transmission in this truck is not one of its strong points and with 158k miles i know its getting up there. Looking for some direction, do i start with trans. service? could it be a faulty tps? perhaps changing the spark plugs will help?
thanks in advance, im new to the world of working on cars and am grateful for any wisdom that is shared.
I have been experiencing a bit of shaking, feels like its coming from the engine compartment, but my incling is that its transmission related. the shaking occurs once i get up around 30-35mph and also around 40-50mph. it goes away when i let of the gas and also goes away when i accelerate. it does not happen all the time. and happens more often than not when im on an incline. I heard from a friend that the transmission in this truck is not one of its strong points and with 158k miles i know its getting up there. Looking for some direction, do i start with trans. service? could it be a faulty tps? perhaps changing the spark plugs will help?
thanks in advance, im new to the world of working on cars and am grateful for any wisdom that is shared.
Logistics Pro
Joined: Jan 2002
Posts: 4,907
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From: suburban atlanta
You could try turning off the overdrive if it is engaged. When you are going up an incline, the engine works harder, and having the torque converter locked up in overdrive may be a little too much reach. One other thing to try is to tap on the brake pedal to release the lockup. Just enough to light the brake lights. If that stops the shaking, you may need to adjust or check your kickdown linkage.
tom
tom
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Joined: Oct 2003
Posts: 827
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From: Seattle
I had a '98 Ranger auto and when the bearing on the driveshaft went out it did pretty much that. It was the bearing between the driveshaft and the torque converter box. It was not a cheap fix by any means, but mine gave out after only 5 thousand miles, so I didn't pay for it.
Not saying that's your problem, but it does sound very similar to what I experienced. It felt like a shudder that almost made the truck undrivable, and it would cease after reaching about 40 mph. Scared the H out of me.
Not saying that's your problem, but it does sound very similar to what I experienced. It felt like a shudder that almost made the truck undrivable, and it would cease after reaching about 40 mph. Scared the H out of me.
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Joined: Jan 2006
Posts: 527
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From: Streamwood,IL
shaking
Sounds like it could be the tailshaft bearing on the trans. My '99 did a little vibration at hiway speed-I looked underneath, and I noticed the weight they had put on to balance the driveshaft had fallen off. Pulled shaft-took it to a reputable shop that does this kind if work, and its been fine ever since. Look at differential carrier-the front of the diff that sticks out toward the trans- it also has a bearing. Can check to see if it has a lot of play. Hope this helps?
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