Here is my problem.

[87yotaGOD]

My truck runs like ass when its cold. I got the AAP replaced 2 times, 3 diff. people have worked on it to no avail. If I get into is, start up, and try to drive it cold, it will chug, surge, and stumble until I turn it off, go into school for 5 hours, then come out in the hot day and start it, where it runs fine. Also, if I leave to idle for about 10 mins in the morning instead of just getting in a driving off, it runs fine. What is my problem, I don't think I have any vaccum leaks, checked the fluids, fuel mix is good, and it runs fine when its hot. Even if it gets to operating temp while running it WITHOUT a 10 min warm up in the morning, it runs like crap. But, again, in the afternoon or after 10 mins of idle, it runs fine at any temp. WTF is wrong with my truck. Distributor? Carb? I'm at my wits end. HELP

[sonofmayhem]

too thick of oil? maybe try a lighter weight oil.

i saw something on american chopper, where the oil got to cold thickened up, and burned up the engine. just my 2cents.

[87yotaGOD]

I just replaced the oil about 500 miles back. Umm, but, it didnt run like this until after I put a new timing chain on it, and like a dumbass, I cracked the top of the TC cover ever so slightly. Some oil leaks about, about 1 tbsp a day, but, could that be the source of my problems? The leak is right under where the top bolt of the TC cover is.

[Ben_frogg]

I've had a much similar problem with a 2000 astro I used to own. (I know, sold it for a 97 taco, gotta love it) I asked a few people about it, and they mentioned the distributor was almost definatley at fault. Look at your distributor cap for cracks. While you've got it open, inspect that there's not a lot of corrosion on the cap or the rotor. (may as well, you've got it open) If either have a lot of corrossion, you may as well replace them. Now, if there's no crack in the distributor cap, I would say your problem is that of condensation. Heating and cooling on surfaces like metal and plastic can cause condensation. Most distributor caps are coated from the factory to prevent this. (so far as I know) Most any auto parts stores sell distributor wire dryer, and further distributor wire sealer. Both of these products can be sprayed into the inside of the distributor cap. The sealer will almost definately solve your problem. Let me know if it works, huh?
Ben

[Williams]

with 3 people already looking at it, that should have narrowed it down a bit.....hopefully at least one of them started with a tune-up, ie. new plugs, cap, rotor, plug leads, all filters, etc. Most all people do not really maintain there vehicles that good, and when something F____ Up figure you can just change a single part to fix it. While this is possible, a good mechanic will start with a common tune-up and go from there......

[Ben_frogg]

Good call on the tune-up. I guess I figured that's the obvious first place to look. You know, fuel filter, pcv valve, oil and filter, distributor cap, rotor button, air filter.... so on and so forth. I still say try my idea if you've already done your tune-up.

Ben

[87yotaGOD]

Well, I keep everything up in the truck tune up wise, so I don't think it's that, but, the distributor could be FUBAR since it is about 18 years old. Thanks for all the suggestions, I will get back with you on results.

[jrandis04]

I had the same problem. I took it to my local Toyota dealer and they fixed it. I forget what they did, but it worked. I think its something to do with the carb. They said it would eventually have to be replaced. You might check into converting it to EFI. I've heard that it is easy.

[87yotaGOD]

I put a new distributor cap on, runs way better. Thanks for the suggestions.

[Williams]

with 3 people already looking at it, that should have narrowed it down a bit.....hopefully at least one of them started with a tune-up, ie. new plugs, cap, rotor, plug leads, all filters, etc. Most all people do not really maintain there vehicles that good, and when something F____ Up figure you can just change a single part to fix it. While this is possible, a good mechanic will start with a common tune-up and go from there......

[87yotaGOD]

Ya dude, I already tune the thing up every time i change the oil. It has recently had new oil, air filter, plugs, wires, belts, timing chain, water pump, coolant. So it may have been that part. Ya feelz me.