Possibly bags leaking? Also Fuel pressure on '98

[1969350]

Had car parked for 2 days with battery disconnected doing a blend door job. Noticed front end looked slammed down as in pic. Do ya think I have a leak in front that I never knew about being batt. was disconnected and compressor wasn't refilling to keep parking height? Thought I did hear compressor running one day when car was outside just parked.
Also having stumble, miss after driving a few (maybe10-20) miles. Have new plugs,boots,air filter, no scanner codes showing or pending. Fuel pressure is 28 @ idle hot or cold, need to make longer hose for gauge at work to test out fuel pressure while driving. Seems really bad above 1800 RPM after driving a bit.

 

[mespock]

Had car parked for 2 days with battery disconnected doing a blend door job. Noticed front end looked slammed down as in pic. Do ya think I have a leak in front that I never knew about being batt. was disconnected and compressor wasn't refilling to keep parking height? Thought I did hear compressor running one day when car was outside just parked.
Also having stumble, miss after driving a few (maybe10-20) miles. Have new plugs,boots,air filter, no scanner codes showing or pending. Fuel pressure is 28 @ idle hot or cold, need to make longer hose for gauge at work to test out fuel pressure while driving. Seems really bad above 1800 RPM after driving a bit.

Compressor will run with the car off for up to about 1 hour.

I'm not 100% but I would say you have leaking bags. The general test for leaking bags is to have the compressor pump up the bags then turn off the air ride in trunk. If the bags go down then bags are leaking.

If you don't replace the leaking bag you will kill your compressor then have a lot greater expense.

 

[98lincmk7lsc]

Nice to see another Charleston area guy! My 97 was doing the same thing with the misfiring. It turned out to be a bad coil. You may want to check those.

 

[Jeffguy11]

Compressor will run with the car off for up to about 1 hour.

I'm not 100% but I would say you have leaking bags. The general test for leaking bags is to have the compressor pump up the bags then turn off the air ride in trunk. If the bags go down then bags are leaking.

If you don't replace the leaking bag you will kill your compressor then have a lot greater expense.

my 98's compressor kicks on randomly longgg after that 1 hour time period.. kinda strange

 

[Calabrio]

Most likely you have either bad bags or a bad vent solenoid.

 

[unity]

Leaky front bag(s). They have their own solenoids and are "sealed" from the rest of the system. If it cant refill, then the vent solenoid is stuck open. The system can run for up to an hour after to make final leveling adjustments. 28 psi on the fuel is a little low.

 

[Abbens]

I would think the fuel psi should be around 34-38 I could be off but I dont have a manual on the marks either. im spoiled by those mitchell on demand software.