Suspension clonk when dropping off a speed bump and bit of a service...

Tourist · 6th September 2017, 20:26

Hello chaps,

I'm having a happy Sunday tidying up a couple of little issues with my Diesel Tourer before its MoT later in the week, and also giving it a bit of a service. One little niggle is that I get a clonk on the front suspension, passenger side, when I drop off speed bumps. I can't find anything amiss but wonder if there's an obvious culprit that I should check. The car drives, steers etc very nicely.

Already on the list of things to do is:

1. Oil and Filter change
2. Inspect air filter / pollen filter, replace as required.
3. Check / rod plenum drain (monthly check!)
4. Replace intercooler o-rings
5. Replace fan resistor to cure Aircon pulsing/no slow speed problem
6. Restore headlights using Mequires kit
7. lift front crash bar while bumper is off.
8. Check PAS/Aircon pipe for chafing (where exactly is this common problem area?)
9. General brake service - inspect fronts (which seem to be OK) and probably replace rear pads & discs because there's not a lot of meat left on them. Fluid change is not due yet.
10. Adjust handbrake

Is there anything else that you'd suggest for a 10,000 mile service? I've never bothered cleaning/replacing the PCV valve, but did inspect and disconnect the EGR last year. The car came to me last year with unknown service history and has just tipped over 80k miles.

Cheers all - I'm looking forward to a day fettling the old gal

RPWC · 6th September 2017, 20:28

First port of call, drop links, then lower ball joint.

Richard1973 · 6th September 2017, 20:56

it would be worth removing the inlet manifold and seeing how clean everything is inside and also check to make sure the area around the MAP sensor isn't clogged up.

Tourist · 8th September 2017, 15:41

Thanks for those replies, gentlemen - I've added inspection of those items to my list.

One other thing - I'm getting a very slight intermittent squeaking sound which varies with roadspeed. Sounds like a slightly binding brake, but goes away if I turn left slightly.

I noticed it today so I'll hopefully find out its source on Sunday. I'm hoping it's not a CV joint....

6th September 2017, 20:26	#1
Tourist Loves to post 2004 Rover 75 Tourer CDTi Join Date: Apr 2016 Location: Fulbourn, Cambridge Posts: 455 Thanks: 105 Thanked 123 Times in 101 Posts	Suspension clonk when dropping off a speed bump and bit of a service... Hello chaps, I'm having a happy Sunday tidying up a couple of little issues with my Diesel Tourer before its MoT later in the week, and also giving it a bit of a service. One little niggle is that I get a clonk on the front suspension, passenger side, when I drop off speed bumps. I can't find anything amiss but wonder if there's an obvious culprit that I should check. The car drives, steers etc very nicely. Already on the list of things to do is: 1. Oil and Filter change 2. Inspect air filter / pollen filter, replace as required. 3. Check / rod plenum drain (monthly check!) 4. Replace intercooler o-rings 5. Replace fan resistor to cure Aircon pulsing/no slow speed problem 6. Restore headlights using Mequires kit 7. lift front crash bar while bumper is off. 8. Check PAS/Aircon pipe for chafing (where exactly is this common problem area?) 9. General brake service - inspect fronts (which seem to be OK) and probably replace rear pads & discs because there's not a lot of meat left on them. Fluid change is not due yet. 10. Adjust handbrake Is there anything else that you'd suggest for a 10,000 mile service? I've never bothered cleaning/replacing the PCV valve, but did inspect and disconnect the EGR last year. The car came to me last year with unknown service history and has just tipped over 80k miles. Cheers all - I'm looking forward to a day fettling the old gal

6th September 2017, 20:28	#2
RPWC This is my second home 75 model car Join Date: Apr 2011 Location: Newcastle upon Tyne Posts: 20,177 Thanks: 4,008 Thanked 5,083 Times in 3,114 Posts	First port of call, drop links, then lower ball joint. __________________ Cheers. Rich…

8th September 2017, 15:41	#4
Tourist Loves to post 2004 Rover 75 Tourer CDTi Join Date: Apr 2016 Location: Fulbourn, Cambridge Posts: 455 Thanks: 105 Thanked 123 Times in 101 Posts	Thanks for those replies, gentlemen - I've added inspection of those items to my list. One other thing - I'm getting a very slight intermittent squeaking sound which varies with roadspeed. Sounds like a slightly binding brake, but goes away if I turn left slightly. I noticed it today so I'll hopefully find out its source on Sunday. I'm hoping it's not a CV joint.... Last edited by Tourist; 8th September 2017 at 15:42.. Reason: spelling error.

6th September 2017, 20:56	#3
Richard1973 Loves to post Rover 75 Saloon CDTi Join Date: Aug 2012 Location: Mansfield Posts: 287 Thanks: 18 Thanked 69 Times in 52 Posts	it would be worth removing the inlet manifold and seeing how clean everything is inside and also check to make sure the area around the MAP sensor isn't clogged up.