Question about 1992 Daihatsu Rocky
I just changed oil & filter and wife drove car 5 miles and embarrased self at stop lights, as motor raced at idle from 1500 to 1800rpm, except when a/c was on then idled smooth but fast. (Everyone thought she wanted to drag race... Rocky?... Sure) Found no loose wires, no cracked, broken or loose hoses. Very light user, hadn't driven car over 100 miles in last 3 months. Is in mint condition. 132,000 miles. Wife's 2nd car. THanks, Richard (916) 961-5966
Posted by Anonymous on
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Posted on Jan 02, 2017
You need to check the throttle stop cushion is making contact. The engine will hunt if you have air in the throttlebody coolant pipes, if the coolant sensor is faulty or if the TPS isn't calibrated.
Posted on Sep 04, 2008
You may find the throttle position sensor (TPS) needs adjusting or the throttle plate is gummed up and not closing completely. The other two possibilities are the coolant temp sensor and air temperature sensor.
Run a diagnostic per the following:
Posted on Dec 18, 2008
1. Check your water sensor and plenum temperature sensor.
2. The throttle body has a wax element air valve used for cold idle. As the water temperature increases, the wax element closes the idle fast port. Being the highest part of the coolant system you may have an air lock, which can be solved by bleeding the hoses on the throttle body.
Posted on Jan 24, 2009
The E-brake light is on because the brake is slightly on, or the fluid is low, or the brakes are failing It sounds like the fluid is getting low from normal brake wear and not a problem. Just get the front brakes cheched and replaced. Don't put any fluid in because the new brake pads which are thicker will take up the space the fluid has dropped and push the fluid back to the correct level
Your engine is shutting down at idle because of a a bad seal on the engine induction system. It is the big duct that connects to the engine air intake. Leave the car running at idle, E-Brake on, and squeeze the big black duct going from the air filter to the engine, Does the car shut off? Next check small little hoses that attache to this big air duct. Try moving them a little to see if the engine runs different.
If these are good then I would shut off engine and remove this duct. A hose clamp holds one end. A slotted srewdriver will work to remove this clamp. The other end, at the Air Filter simply unclamps by hand.
The Throttle Valve is the first thing you see in the engine, it is inside the intake just after the duct you removed between the Air Filter and Intake. Have some one open the Throttle by stepping on the gas pedal and see if it is clean around the edges. If not, use some cleanning alcohol from your medicne cabinet to clean this area. A toothbrush will get into the tight spaces. Wipe clean with paper towel. Autozones sells a special cleaner called Throttle Valve cleaner spray. Use this not Carburator Cleaner.
If it still runs bad a idle the idle valve could be dirty and now you need more tools to remove it and clean too.
Posted on May 27, 2009
chilton makes a great book
Posted on Jan 10, 2010
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