Recent content by rkgraves

Friend, Great project for You and Your Dad! My wife and I have owned our '91 6 cyl since new. Several of our troubleshooting and repairs have been wiring related. I.e. turn signals quit working, rear defogger quit, antenna, brake lights always on, engine sensors, etc. I purchase the factory...

Friends, I wanted to follow-up to my own post as I did find and repair the source of the fast-idle with-fan-on problem. The problem turned out to be the A/C Amplifier. While I don't have a schematic for this little circuit board I was able to flex it and have the symptom come and go. I narrowed...

CONGRATULATIONS !!!! On finding the major source of your 3-3,500 rpm hesitation! That-is-great! In thinking back through your troubleshooting I am not sure why some of the things you did didnot give a better indication that this was the problem. But irregardless the AFM is easy to check...

Your Videos are great! What I meant by fuel-related was not so much the quality of the gas in the tank/system but whether or not the engine was starving or flooding with fuel. My dad used to say that an engine needs three things to run - compression, fuel, and spark. If it was running poorly...

I had another thought.... if you think that the problem is fuel related what if you squirted some starter fluid or carb cleaner into the intake side of the throttle body when the engine is at its problem rpm. There is that tube on the intake side of the throttle body which feeds back into the...

A picture being worth 1,000 words then a video is .... An Excellent Idea! I recognize your engine.... looks just like mine! If the timing light shows no glitches or unusual behavior at the problem rpms then I think you are looking at a fuel issue. I do have this nagging thought in the back of...

Any thought at hooking up a timing light and just seeing if the timing goes weird at the problem engine speed? I have a '91 with the 3.0 3VZ motor that we bought new and have enjoyed working on it. Yes, there are a lot of vaccume lines! The manual is really good with test for most of the sensors...

Thank You! Everyone who offer Help with this problem. I appreciate it! Yesterday I changed the EFI temp sensor and that corrected 90% of the fast idle problem. Our 3VZ 6 cyl now idles down to around 900 rpms once warmed up. I think it should idle lower, but am at a loss of what to do next...

Thanks for your reply! I'll change that next. On a side note... we traveled over Thanksgiving with our 4Runner and I noticed that turning on the heater/AC fan does not always cause the idel to increase.... wish I kne why. Fan + AC always causes the idle to increase, as it should. But often...

Thanks for your reply! The fan clutch tested OK - when the engine is cold it stayed fully engaged for several min. and then kicked-out. if the dash temp gauge is reading correctly, and the warm air coming out of the heater seens plenty warm, while not positive I would say the thermostat is...

Thank you for your help! I have a '91 V6 5sp 4wd that idle too fast. The problem has gotten gradually worse over the last year. I've owned the vehicle since new and kept up on all the normal maintenance. To-date I haven't done anything other than normal maintenance (no sensors replace, MAF...

Just wanted to update my original post. Thanks for reading it! My only thought is that maybe someone has seen this problem before and can point me in the right direction. The brakes lights always-on symptom is now intermitent. Went 2 weeks without the problem and then it showed up again...

Thank you for your reply! I agree that adding a 30 amp fuse was not the best idea. I was several hundred miles away from home and had run out of 15 & 20 amp fuses. I did remove the Brake/Cruise Control switch and tested it with a VOM meter and the switch tested good. (normally-open contacts for...

Thanks for your help! Recently I noticed the brakes lights not working on our '91 4Runner (V6, SR5, 5 spd, cruise control). The 15 amp Stop Light fuse was blown, I replaced it, and the brake lights began working normally. Later that day (towing and several hundred miles from home) same...