Its been in for electrical work, now it just seems to lose all power and slowly die. this morning it kind of caught it self picked back up and kept going but after that it died totaly i can usualy restart in neutral going down the road. ? not sure whats causing this

have him check the fuel pump. you might be losing pressure over time causing the vehicle to die and after you let it sit the pressure is building up

The reason seems to be vacuum leak. Try replacing the vacuum hose. Vacuum in engine is used to pump the fuel in engine cylinder and to keep the ride in proper working condition. Vacuum leak can be one of the symptoms responsible for vacuum leak.

the mechanic told you repairing an oil leak (valve cover gaskets?) would fix a stalling problem? did these electrical problems start after you got the van back? possible ground wire left off or loose, freestars have alot of issues with the engine computers getting wet from rainwater, and other electrical problems. someone needs to scan all the computers for fault codes that may lead to a direction in diagnosing your problem. does the engine still stall? If you took your car in to get engine dying problem resolved and they sold you valve cover gaskets as the solution to your problem you may want to try a different shop. Be careful, I myself am a mechanic for 20 years and I have seen some mechanics who love money, but they dont invest the time needed in training to honestly do their job correctly. cars are changing, technicians have to be very skilled in electrical systems to repair cars today. find a reputable repair shop would be my advice for you. sorry for your troubles

this may be over charging the battries if it is electrc switched off. or it may be malfunction .

sound like your ABS system. you may have a lose wiring plug some where in the system when the ABS system get active it the system gets all kind of funny things make the car go slow the brakes it brakes it self there is no power in the engine. have your car for a truly electrical check up

sounds like maybe fuel presure and timing

Hi
It's most likely the EGR Valve, "Exhaust Gas Recycler Valve" when they start to go you lose loads of power especailly at 30-50 and on hill's

Is the engine light or any lights on the dash?
EGR Valves are about £130 you can fit them your self also.

Somedays it wil not do it at all other days you can barely drive the car.

Worth mentioning you may be able to clean it, so have a go before buying a new one. Use carb cleaner and spray it all over it, dont be shy, you cant damage it. dry it off and re-fit it that cures it then you should be ok, but be aware it may fail over the coming months.

Hope this helps, if not get back to me for more info.
It could be a few things but your description is so presise I would say it's The EGR.

Regards
Dan

could be a lose ground somewhere. check the wires from your batery and alternator. specifically the grounds. no ground no power.

How did you check the battery? This needs to be done with a load test to be sure. Most car parts places will do this free. Battery leads OK? Not corroded? Also have the altenator checked for proper voltage out.

Most vehicles if you get the car running and unhook the positive battery cable it will stay running that is because it is running off the alternator. if it dies like your talking about I would most definitely say your alternator needs to be replaced. Most likely when you jumped your father in laws pick up there was a bad ground somewhere and your alternator got a surge of electricity and it fried it. Hope this helps.