RalphE

I wish you the best of luck on curing the check engine light problems. In the past I have done all the things that you did. each time the truck ran great for 20-30 K. Than the light came on again. A valve grind at $1600 a valve adjustment $1100 belts plugs timming after Oxygen sencer $700. And still having the problem. Ralph

Tundrawolf: You snowed me on the web sites, It takes me at least three try just to answer this one. When it comes to all this new tec stuff I'm lost. I could have punched the wrong butten.

We live in a town of 400 population. the nearest town of any size is The Dalles 45 mi. One toy dealership lots of independents non specializing in anything. Would have to go to Portland to find a independent. I do remember while they were adjusting the valves in Texas, they checked the fuel pressure. Three years ago I had to have the fuel pump replaced (inside the gas tank) The pick up filter on the pump was badly pluged. had the main fuel filter changed also.

Thanks for the suggestions. Have tried three of the sites and all three wanted me to give them my credit card number and pay for a answer. I am just a little learry of doing that, not for the cost but don't like to give my number out to just anyone. Also why pay for info that I already have. I guess I just have to make my mind up as to what I want to do. Love the M/H but don't like being stranded someplace for a week or two everytime I have trouble.

Every time I spot a toy M/H when we are out camping or in a parking lot I ask them, no one seems to have ever had the check engine light come on or had problems with burnt valves. Thanks to everyone for all the suggestions. I am supprised that no one has suggested it might be the computer. Something is shuting down the air supply and causing the valves to burn, is my guess. I used to be partners in a auto Machine shop in the early 60's. but I know nothing about all this pulution control equipment or computers. You don't go from running great to loosing compression on two cylinders over night. that sort of thing usualy takes time and is a gradual process. All I have to do is open the hood and see all the garbage in there and I ge scaired. I am 71 now and can't see myself taking on a job like that. Would spend the money but also want some one dependable.

Got any suggestions or recomendation? I always felt that a dealership would be my best bet. suposed to be trained on Toyotas, should know. Now they are telling me that all my parts are "after market product" (which means they don't have in their parts house.) Found out that they called NAPA and had the pts delivered and charged me double. needless to say I am not to happy.

I have replaced the 02 sensor twice, $100 and the Oxygen regulator (just before the intake maniforl and I think ontop of the air filter $600 once) I do not have a manual for the truck but in AZ the mechanic copyed two pages out of his book that tell me all the blinking light codes. He also supplyed me with a jumper wire and showed me where to plug it in.

OK guys--please go back to my original messages and read all responces. One other thing is that toyota told me that the 3 L engine with just one big exaust valve pulling that much wait is asking to much. This engine was designed to be used on a pickup not a M/H. When even the dealer tell me that the 3 L is the worst engine toyota ever built. Even the old 4 cylinder was better. This problem only seems to arrise after or about 30,000 mi and the check engine light comes on.

All the mechanics I have talked to at the toyota dealerships say there is not any engine that will match up to our transmition. I would have to have a compleete retro fit. engine, trans, exaust, motor mounts, wireing harness, computer and the cost would be astronomical. and that could lead to countless other problems. a retro fit is never as good or dependable as a factory built.

After having the valves adjusted this last time it is running great but only got 7k mi and light came on again. I reset it (still blinking 25and26) and came home. running perfict. I have had it into 7 different dealerships, always the same answer.

Update: The codes that come up are always 25 and 26. I just talked with a master Machanic at our local Toyota shop and was told -- the 3 leter engine is the worst engine toyota made. Only one large exaust valve per cylinder. Has a problem in warping. 3.4 leter has two exaust valver and no problem. I ask to change engines, he said couldn't do as Transmition wouldn't bolt up, different motor mounts, wireing harness, exaust, computer. would be better and cheaper to buy different M/H. Any Suggestions? rtwimmer@centurytel.net

You might also check your fuel pump. Mine was located inside of the fuel tank and the pickup screen got pluged. after setting for a while it would start again and i could go for about 30mi than have the same problem. I found out that if i kept the tank full never less than 1/4 i was allwright. good luck. RalphE