Slotheraptor
Junior Member
- Joined
- Sep 9, 2019
- Posts
- 4
- Reaction score
- 0
- Location
- Stony Plain, Alberta
- Ram Year
- 1989
- Engine
- 318 LA
Hey everyone, new guy on the forum here. I'm having some trouble with my '89 d150 with a fuel injected 318 LA, was hoping to get some answers here. I've searched around exhaustively and can't find the help i'm looking for. As of right now, once temperatures drop below 15°C (59F), for some reason my truck seems to lose a bunch of power. The truck starts just fine, and generally idles fine until temperatures get below freezing, it then will surge a little bit. The problem is, as soon as I put it in gear, either reverse or drive, there is a noticeable drop in power, and when cold enough it will actually stall. the engine sounds like it's flooding almost, really deep and slow sounding. Once it's on the road, it's got no oomph, almost like there's something pushing back against the truck and keeping it from moving. How much gas i give it doesn't help, it actually seems to get worse when i give it more. Then as soon as i hit the 20-30 km/h (12-19m/h), it picks up and drives along like normal, with some minor surging at cruising speeds. Then when i stop at a light, the engine sounds like it's going to die out again, and had even stalled on a few occassions. My only thoughts are it could possibly be an O2 sensor. I have replaced the distributor cap, spark plug wires and spark plugs. I have a new coolant temp sensor and pcv valve, and have recently cleaned the injectors and top end of the engine, as well as done a coolant flush. Any help or suggestions as to what the issue could be, or any diagnosing advice, would be greatly appreciated.
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