I just gave my old intrepid to my daughter for Christmas, and after her first real day of driving it, it won't start. She went out this morning the starter turns and the engine cranks, but it won't turn over and start.
It had some problems that I was going to start fixing, and luckily I had someone check the codes a few times. I'm not sure if the initial problems I was going to work on are associated with this new problem of not starting.
I'll let you know what the problems were, and then discuss what I think the no start could be and outline my plan to diagnose it. I'm new to this whole thing, so I'd appreciate any guidance you could provide.
A few months ago, I began getting p0300 codes. In additino to that code, I also received codes stating the engine was missing cylinders 3 and 6. The engine was misfiring and I could tell it was affecting my gas mileage. The car would usually misfire when I began to accelerate, but once I gave it enough gas, it seemed to stop misfiring and run as normal, but I felt like I had lost a little horsepower. It also would idle a little rough like it was missing a cylinder. I didn't do much except swap the ASD relay for my wiper relay to see if that was a problem. It didn't change anything.
That was a few months ago, I took it in again yesterday and received the p0300 codes and also p0123, p0120, and p1489 The first two codes are probelms withthe Throttle position sensor, and the last code indicates a problem with the high speed radiator fan control relay.
Today it won't start. I don't know that any of the previous codes have anythign to do with it not starting, but I thought I'd throw that in there.
So far I think the car has spark (one of the spark plugs boot is broken and when I pull it out, I can see the spark jump from the spark plug wire to the engine when I get it close enough). Because it has spark, I assume it isn't getting enough gas to start, so I'm thinking fuel system problems.
I'm interested to know where you would start. I plan on:
- testing with starting fluid to see if it will turn over with it instead of gas
- check relays
- check fuses
- listen for pump to prime when I turn the car on
- check fuel pressure
Those are the free options I have. Any other ideas? I'll follow up later today with my progress.