My 4runner with 227000 miles on a 4 cylinder idles well at start up run it and it revs high at 2000 rpms between shifts and idling why?
Try changing your pcv valve. if that dont work it could be your mass air flow senscer or throtle pasistion senscer
Yes. Rough idling can be attributed to many different factors including carburetor jet settings, bad fuel, dirty fuel system, fouled plugs, bad timing, weak spark, high altitude,low cylinder compression, worn rings, poor electrical connections, carbon trail on magneto cap, or even to low of an idle setting.
Why is engine idle on a 1994 4Runner idling very rough even after a complete electrical tune up What should a person look for and what could be the problems?
What is a typical vacuum pressure on an idling 4 stroke engine so I can sync a carb set on a Yamaha outboard and make sure I don't suck the manometor fluid into the cylinder?
It might be the idle air control valve. It is about a $40.00 part. It is a cylinder shaped unit bolted down with 2 bolts with 2 wires attached, located between the air intake and the throttle body. it could also be just a simple tune up. try replacing the plugs and coil packs/ wires. (i forgot what ford used then, i believe there coil packs.)
The idling speed cannot be adjusted for fuel injected models. It is done by the ECU depending on inputs from various sensors. If the idling is erratic it is best if the car is taken to the vauxhall dealership who have testing equipment called TECH 2 which diagnoses the problem. The idling speed cannot be adjusted for fuel injected models. It is done by the ECU depending on inputs from various sensors. If the idling…
The condenser fan is more likely to run when the car is idling. So if it NEVER comes on when idling you definitely have a problem. If the condenser is not cooled, then your compressor could get overloaded. It may be a problem with a relay that is preventing the fan from running - or some other issue.