02 Q45 Back end too low

[BASHMAN]

It seems my Q45's back end is lower then normal. When ever I go uo a steep drive way with passengers in the back or costco shopping day the exhaust and bumper touch the assphalt.
Is anyone else having this problem? Seems like my shocks feel okay, not sure what the problem may be...
Thanks in advance for any help.

[mcrews]

this is the field service manual
gotta downlaod it.
http://www.nicoclub.com/FSM/Q45/2002_Q45/2002_Q45/

look under rsu
there are measurenmts on the last page. That should give you an idea. how many miles?
I relpaced my springs and shocks & struts at 100k and 210k

[Lokim]

It seems my Q45's back end is lower then normal. When ever I go uo a steep drive way with passengers in the back or costco shopping day the exhaust and bumper touch the assphalt.
Is anyone else having this problem? Seems like my shocks feel okay, not sure what the problem may be...
Thanks in advance for any help.

Ha! a**-phalt!

[SKILLVIA]

All 2002 and up q45 will sag in the rear as the rear springs lose their tension. must replace with new springs or go air bags.
if you go air bags (cheaper) you will have to make your own mounting kit as universal ones do not work. i have to go back and make mounts because the universal ones do not correct the problem and also squeeks. will fix soon.

[qship96]

Every 02-06Q came right off assembly line with sagging rear end look

[mlawre10]

Every 02-06Q came right off assembly line with sagging rear end look

i was wondering this and u just confrimed it...

[mcrews]

Wow......wish I could make nonfactual answers and get away with it.

1. bashman, did you downlaod the FSM and go to the last page of the rear suspenion section and measure the distance that you have????
2. The ONLY time in 229,000 miles that the rear of my o2Q45 dragged the ground was when I had swift lowering springs for 3 months. Even the day before I replaced the springs 10k ago, the car DID NOT drag.
3. always helps to own the car you are talking about.
4. despite the general comment made bt one poster, the flagship car was not designed to drag and they were not too loww from the factory.
5. There is no need to put bags in either.

uintil you get the measurements and post them, there is no solution to your problem. A "look" does not make a car drag with people in the rear seat.

I run a stock suspension and an IMPUL Full Body kit. So the rear exhaust tips hang 2 inches lower than stock. I have probably scraped those rear tips 5-6 times in 5 yrs. and It was more the product of a steep driveway than a tired set of springs.


aMeasure as per instructions
then measure next time your loaded.
you can tell if there is tooo much compression
also how many miles do you have on the car?

[mlawre10]

Wow......wish I could make nonfactual answers and get away with it.

1. bashman, did you downlaod the FSM and go to the last page of the rear suspenion section and measure the distance that you have????
2. The ONLY time in 229,000 miles that the rear of my o2Q45 dragged the ground was when I had swift lowering springs for 3 months. Even the day before I replaced the springs 10k ago, the car DID NOT drag.
3. always helps to own the car you are talking about.
4. despite the general comment made bt one poster, the flagship car was not designed to drag and they were not too loww from the factory.
5. There is no need to put bags in either.

uintil you get the measurements and post them, there is no solution to your problem. A "look" does not make a car drag with people in the rear seat.

I run a stock suspension and an IMPUL Full Body kit. So the rear exhaust tips hang 2 inches lower than stock. I have probably scraped those rear tips 5-6 times in 5 yrs. and It was more the product of a steep driveway than a tired set of springs.


aMeasure as per instructions
then measure next time your loaded.
you can tell if there is tooo much compression
also how many miles do you have on the car?

thanks for the info mcrews.. i'm going to check my ride height 1st thing tomorrow morning...

[djwarner]

I did a quick check on my '02.

The front measured 28.25 vs the spec 28.75 or 1/2" low.
The rear measured 26.625 vs the spec 27.72 or 1.095" low.

[mlawre10]

my '02,

The front measured 29.00 vs the spec 28.75
The rear measured 26.73 vs the spec 27.72

i guess my car is within specs.....

[djwarner]

my '02,

i guess my car is within specs.....

Uh,,, the page from the FSM lists a number without tolerances. To me, this either means there is only one acceptable value with no tolerance - or - more likely, the number given is typical and will vary from vehicle to vehicle.

I wonder what the actual tolerance is on the spring rate. From the FSM it appears more likely the rubber in the upper spring cap has deteriorated

[mlawre10]

my '02,

i guess my car is within specs.....

Uh,,, the page from the FSM lists a number without tolerances. To me, this either means there is only one acceptable value with no tolerance - or - more likely, the number given is typical and will vary from vehicle to vehicle.

I wonder what the actual tolerance is on the spring rate. From the FSM it appears more likely the rubber in the upper spring cap has deteriorated

Since it’s not effecting my ride quality i believe I’m going not going to worry about it at the moment....i do notice a rattling sound when hitting pot holes but it more or less is coming from the front…my 1st priority is to get my stereo working and maybe after then I will look @ other issues. thanks again for the info guys!!!!!

[mcrews]

When I replaced the shocks in the rear (and front) I also ordered new`rubber part all around. course I have 200k+ on the rubber so it just made sense.
If you have the sport suspeion, then you should be orderenig the shocks and struts from the infiniti dealer in Scottsdale....Joe the parts mger gives use 25% and will try to help on the shipping. Might as well get the variuos rubber parts also.

My rear is at 27.00 right now, but I'm taking boxes to the storage unit and the trunk is full and a couple boxes in the back seat.
When I unloaad tomorrow I'll measure again.

fyi, the bottom of my exhaust tipps are not quite 10 inches off the ground today.

here is a pic with the car loaded, I'm driving to dallas from sac for 3 weeks.:

[Bosworth Audio]

I'm running 27" up front and 26.25" in the rear and I've only scraped twice, even with 4" exhaust tips out back.

[mcrews]

bos,
your running amps in the truck?
did you do any lowering ?