dt3257

After the car sits for 24 hours it is hard to start, need to actually give it a little gas. It runs poorly too for he first minute or so.

Also it has a little tick, not loud but noticeable, sounds like it might be coming from the valve area but it's hard to tell. It almost goes away when the car is fully warmed up.

Any info on these would be much appreciated.

billtool

I had the same issue recently. Check the Temp II sensor. If it checks out, change out the O2 sensor. That fixed my cold start idle hunt.

soontobered84

The injectors can be quite noisy and sound like a stuck lifter sometimes., but it gets harder to hear them when the fan comes on.
Temp II affects lots of stuff on these cars and can be tested pretty easily. Use the search function. If it is bad, they are relatively inexpensive.

danglerb

Pushing the pedal down actually gives the car a little more air, and is the remedy for a flooded, too much gas condition.

Giving a car new to you a full inspection and working out a schedule of PM might be the best way to address all issues. Troubleshooting as various things happen I think actually takes more time.

ROG100

Bill is right - check the temp II first. Cheap item to replace.
Try some Marvel Mystery oil in the engine to help clean it up and free up the lifters.
Roger

dr bob

Stoopid Stuff--

Get the oil changed and use the right oil. The owners manual in the glovebox lsist recommended viscosity ranges for different climates. I buy the Mobil-1 in 5-quart bottles at Wal-Mart, in 15W-50 flavor, ant is works fine for where I live and the way I drive. New correct oil may help with the lifter tick, and it's something you want to do as part of your maintenance baseline effort.

My car showed similar hard-starting symptioms for a while prior to LH brain expiration. Had a rebuilt on the shelf so troubleshooting was pretty simple. As others mention, temp-II sensor is a possibility. A tired airflow sensor will do the same thing, and also give you a lean top end mixture. Vacuum leaks will do all that too, so a first order might be for the temp-II, an oxy sensor, and maybe replacement vacuum hoses and bits. The 928 has a lot of places for leak to develop downstream of the airflow sensor but upstream of the throttle, including all the oil vapor recovery hoses, and the oil filler neck itself is subject to cracking with age. Air leaks there won't be noticeable at idle, and standard spray-with-something techniques don't work when the idle air control valve is working-- car never speeds up when a leak is sprayed. If the intake is ugly and the hoses are tired, replacing all the oil hoses and that filler neck may help cure your cold idle issue while the intake is off for refinishing.

Lots of possibilities. Start with the easy stuff like the temp and oxy sensors, a visual inspection of the vacuum and oil hoses, then borrow a known-good MAF and LH brain if there's still a problem.

There's a writeup somewhere on making an intake vacuum leak checker with a few Home Depot plastic pipe fittings and a natural gas system test gauge (fraction of a pound readings) to pressurize the intake. That will identify quickly if and where you might have air leaks. Beats chasing problems you may not have (yet).