The first thing you want to check is your battery state of charge. If your car has been sitting that long, I can almost guarantee that your battery is dead. If it's been sitting that long, your best bet is to replace the battery.
Often cars that are parked overnight need to be recharged. It is possible that the battery has died and needs a replacement or a jump to start.
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Check for spark at the plugs, if good, then check for fuel. Also check the fuel shut off in the trunk. The breaker might have tripped.
I would say at least two months....
Start with the fuel pump. I have found in purchasing vehicles that have been parked for any length of time that I had always had to replace the fuel pump, strainer and filter.
Check the grounds on all wiring harness this was the problem on mine
Maybe a weak fuel pump?
7 QUARTS Roughly Start with 6.5. Check dipstick mark on while parked on level surface. Check while engine is HOT. Fill to top line on dipstick. DO NOT OVERFILL!!!
check oil on dipstick to make sure enough oil in engine.you can remove sparkplugs and squirt a little wd40 in cylinders before you start it.hopefully gas in tank hasn't started going bad(use sta-bil or other gas preservant in gas next time you think you may not start engine for a while)AnswerCharge the battery if it is down. Otherwise just start it. It has not sat long enough to worry about.
you can start working a German when he is about 10 months old but to make sure his bones are fully developed check with his vet.
Check all earth wires from battery to engine and earths from body to engine
First, I would check the oil and coolant to make sure neither one is outdated. Look for water in your oil and check to see how black and gritty it is. Then, probably just hook jumper cables up to it (if it doesn't start by itself) and it should start. I would let it run for several minutes to let the engine relubricate itself.