1990 Ford F-150 — payload sticker changed my whole truck-shopping plan

Log the conditions before you spend. A pressure test beats staring at a dry driveway if the 1990 Ford F-150 is losing coolant with no puddle. You'll know quickly if you're on the wrong tree. On “150 — payload sticker changed my whole,” that was the fork that mattered for me. Keep sale price, fees, and rate as three different conversations. Climate here is different, so treat that as a local data point. Might be overthinking it, but I'd rather overthink than overspend.

If it were in my driveway, move a coil or plug on the 1990 Ford F-150 if it's cylinder-specific and see whether the code follows. Don't erase codes until someone who can help has seen them. Learned this the expensive way on a previous car. Doing the boring step first on purpose.

Ask what changed right before it started. Loaded-suspension checks on the 1990 Ford F-150 catch play that a wheels-hanging inspection misses. You'll know quickly if you're on the wrong tree. Had a similar mess a couple years ago and that's what finally sorted it. Make the next action something you can finish this week. I already checked the easy fluid levels.

I wouldn't throw parts yet. Write temp, speed, and in-gear vs coast when the 1990 Ford F-150 does it — then decide on parts. If the cheap test changes it, stop and reassess. I'd want that in writing, not as a promise. Video is ugly but it shows the hesitation.