Q&A

 Rookie

The van will turn over and speed up a little as if it will start and sometimes give a rough, rough idle for 4-5 seconds, but will not start, and sometimes will backfire out of the air intake. 2 weeks ago the van ran terrible so we had a cadallidic converter put on which seemed to solve the problem since the van started and ran great that day. They recommended a tune up soon. 3 days later the van would not start with the symptoms given above. I changed spark plugs, got a new battery, changed fuel filter, changed cap and rotor, added fuel, and get same result. I tested spark plugs with a tester and they spark fine on both sides. I visually looked to see if fuel is coming into carb and it looks fine. I am planning to test fuel pressure with a tester soon. The longer I tried to start it, it seems like the engine is trying to lock up. I hesitate to think it is a problem inside the engine, because there weren't really any symptoms the last time I drove the van that would point at internal damage, but maybe there won't be. I checked the oil and it seems fine. Does anyone have any ideas aside from testing fuel pressure? I may also test the compression. thanks One other small note is that a few days after the van would not start a random person knocks at the door and asks if I am keeping the van. Part of me wonders if they did something to the van? maybe that is just my pessimistic side. thanks again