Originally Posted by chris3182
i just bought an 03 ranger yesterday. and the whole test drive and way home which is about 20-25 miles there was no issues. i park it last night and get home from work today and start it up to give it a once over and its having a real rough idle that goes away at about 1500rpm but any below that it is rough. it dosent feel like a misfire either. when i start it it is a solid check engine light. then after about 3-4 minutes it starts to blink. if anyone has any experience with this issue help would be greatly appreciated.
You might want to check a couple of the harness connectors like the TPS, MAF, etc. just the obvious ones. It is possible that their tech who worked on it did a half donkey job putting it back together after a tune-up and one of the connectors vibrated loose, your discription directly fits the bill for the MAF connector, but it is usually felt across the board, the TPS usually affects everything below a certain point, it is really just a trigger switch to tell the computer when it needs to take over for idling. Unless your truck ate bad mexican food and has bad gas. If all connectors check get ahold of Heet, water remover, ir 6 oz of Iso alcohol and dump it in the tank then drive zig zags for a few seconds and it'll clear itself up usually in about 10 minutes driving, not idle, driving. G/L
Note: this statement has not been evaluated by the food and drug administration and is not intended to treat or cure any disease, you should not use this statement if you are pregnant or could become pregnant as it is about quick checks you can do to Tshoot your vehicle quickly and avoid those $100/hr fee's your dealer charges for every 15 minutes a tech actually looks at your vehicle. Common side effects of consuming automotive fluids orally are headaches, blurred vision, vomiting, anal seepage, and in some rare but appropriate cases death.
P.S. if you are cute, female and looking to become pregnant PM me. . . = )