Suspension Level sensor arm
#1
MBWorld Fanatic!
Thread Starter
Suspension Level sensor arm
I'm starting to get the front end (usually just the front, right) droop. I've read plenty about that and don't really have a question about that. Other than, and this is strange, it only seems to happen (but not all the time and not quickly) after I back up to park the truck. Pulling forward, so far, doesn't cause the droop. Weird!
But, I've also noticed that the front, right side is consistently almost an inch lower than the front, left side (measured to wheel well lip). Even immediately after parking/turning engine off. The level arm "link" on the right side is softer - almost rubbery - than the left side. But the left side isn't "hard" nylon/plastic, either.
Are your "links" hard or do they bend somewhat? I'm wondering if the right side is overly soft and flexible, maybe it's not acting on the actual sensor properly.
But, I've also noticed that the front, right side is consistently almost an inch lower than the front, left side (measured to wheel well lip). Even immediately after parking/turning engine off. The level arm "link" on the right side is softer - almost rubbery - than the left side. But the left side isn't "hard" nylon/plastic, either.
Are your "links" hard or do they bend somewhat? I'm wondering if the right side is overly soft and flexible, maybe it's not acting on the actual sensor properly.
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Mo Fatehzadah (07-13-2020)
#2
they bend.
grab them in the middle and twist a bit to see if the balljoints move freely.
if they dont - remove (be careful not to break the lever plastic arm as it will be stuck on), clean up and lubricate with grease. reinstall and make sure they move freely in all directions.
grab them in the middle and twist a bit to see if the balljoints move freely.
if they dont - remove (be careful not to break the lever plastic arm as it will be stuck on), clean up and lubricate with grease. reinstall and make sure they move freely in all directions.
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Mo Fatehzadah (07-13-2020)
#3
MBWorld Fanatic!
Thread Starter
Thanks, Alx. They do move on the ball joints, although I can tell they don't move smoothly. They just twist/pop off, right? I'll still remove, clean and lube as it's good PM, anyways. I was thinking of spraying some silicone lube at the pivot point on the sensor, too.
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Mo Fatehzadah (07-13-2020)
#4
Ugh... you can twist the end connected to the chassis ball joint. Do not twist the lever end ball joint as you break the plastic lever arm. Use a suitable open wrench (10 if memory serves me right) to snug it between the lever arm and the link and pry it away.
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Mo Fatehzadah (07-13-2020)
#5
MBWorld Fanatic!
Thread Starter
Got it - makes sense. It looks a lot like the joints used on RC car tie rods, steering, etc. Thanks again!
What do you think about the front end (sometimes just right side, sometimes both left and right) drooping (air bags) ONLY when turning the engine off after BACKING UP? It's not all the time, but so far it has NEVER happened after pulling in forward. Is it too strange to explain?
What do you think about the front end (sometimes just right side, sometimes both left and right) drooping (air bags) ONLY when turning the engine off after BACKING UP? It's not all the time, but so far it has NEVER happened after pulling in forward. Is it too strange to explain?
Last edited by DennisG01; 02-24-2017 at 10:44 PM.
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Mo Fatehzadah (07-13-2020)
#6
Thank for this posting
This worked for me. I wish I did not replace the air valve and relay switch 1st. I don't think there was anything wrong with those. That said, the replacement part are expensive for a few little pieces of plastic. At least here in Canada.
#7
MBWorld Fanatic!
Thread Starter
Forgot about this thread till you posted, Mo! Just as a follow up - all has been well since cleaning and greasing the ball joints.
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#8
It is OK but not totally solved
Yes. However the rust has damaged the joints so a replacement is needed. Now I have to check it each time I get a chance and clean it with pressured air and apply WD40 if rusty.
#11
MBWorld Fanatic!
Thread Starter
It would. But the dirt tends to stay on the outside layer of the grease. When I've checked/cleaned them since, it's always clean grease on the inside.
#12
Received this estimate today. Please advise what Should I tell the service advisor to
“Estimate:
Diagnosis: $165 plus hst
Oil Cooler Seals with Intakes and EGR (If necessary) – $4600 plus hst installed
Fuel Lines to Fuel Filter – $260 plus hst installed (when doing the oil cooler repair)
Vacuum Pump – $905 plus hst installed
Oil Change (Must be completed after oil cooler seal repair) – $325 plus hst
Level Sensor Links (Seized) – $575 plus hst installed
Please Advise
Thank You “
Some history on the vehicle. This vehicle is maintained at MB 99percent of the time. This September they did the oil and transmission update will oils change. Vehicle can home and few weeks later I see oil drip in the driveway. What do I do. Please advise?.
Diagnosis: $165 plus hst
Oil Cooler Seals with Intakes and EGR (If necessary) – $4600 plus hst installed
Fuel Lines to Fuel Filter – $260 plus hst installed (when doing the oil cooler repair)
Vacuum Pump – $905 plus hst installed
Oil Change (Must be completed after oil cooler seal repair) – $325 plus hst
Level Sensor Links (Seized) – $575 plus hst installed
Please Advise
Thank You “
Some history on the vehicle. This vehicle is maintained at MB 99percent of the time. This September they did the oil and transmission update will oils change. Vehicle can home and few weeks later I see oil drip in the driveway. What do I do. Please advise?.
I'm starting to get the
front end (usually just the front, right) droop. I've read plenty about that and don't really have a question about that. Other than, and this is strange, it only seems to happen (but not all the time and not quickly) after I back up to park the truck. Pulling forward, so far, doesn't cause the droop. Weird!
But, I've also noticed that the front, right side is consistently almost an inch lower than the front, left side (measured to wheel well lip). Even immediately after parking/turning engine off. The level arm "link" on the right side is softer - almost rubbery - than the left side. But the left side isn't "hard" nylon/plastic, either.
Are your "links" hard or do they bend somewhat? I'm wondering if the right side is overly soft and flexible, maybe it's not acting on the actual sensor properly.
front end (usually just the front, right) droop. I've read plenty about that and don't really have a question about that. Other than, and this is strange, it only seems to happen (but not all the time and not quickly) after I back up to park the truck. Pulling forward, so far, doesn't cause the droop. Weird!
But, I've also noticed that the front, right side is consistently almost an inch lower than the front, left side (measured to wheel well lip). Even immediately after parking/turning engine off. The level arm "link" on the right side is softer - almost rubbery - than the left side. But the left side isn't "hard" nylon/plastic, either.
Are your "links" hard or do they bend somewhat? I'm wondering if the right side is overly soft and flexible, maybe it's not acting on the actual sensor properly.
#13
advise on what? the repairs are typical for the gl... except the vacuum pump which is a fluke rather than common statistics.
not going to comment on the pricing since you are in canada
not going to comment on the pricing since you are in canada