Why does my Toyota RAV4 stall at idle?
I have a 1996 Toyota Rav4 that is acting weird. Let me start with the list of recent repairs. recently changed the thermostat. After all this the engine started revving up and down when idling. If I try to drive the car while it is still idling it stalls a lot.
How to troubleshoot an automotive engine high idle?
The troubleshooting procedure for high and low idle conditions are similar, which are included in the following: Step 1 – If the check engine or service engine light soon has illuminated retrieving the diagnostic trouble codes could lead you in the right direction of what the problem is, or is related too.
What causes idle RPMs to fluctuate in Toyota?
Resolved (11/15/15): It was a loose camshaft position sensor. Plugged it in and now the car runs fine. Quite often surging like this is caused by not enough air getting passed the butterfly valve in the throttle body when the butterfly is closed.
Can a bad idle control valve cause stalling?
This is controlled by the engine’s computer. Sometimes parts go bad, which results in your car idling strangely or stalling. Check to see if your idle control valve is functioning properly before attempting to replace it. Look for a high engine idle. A common symptom of a faulty idle control valve can be a high idle.
How can I tell if my idle control valve is working?
To check if an idle control valve is working properly, start by turning on your engine and letting it run for a minute or 2. Then, when it’s at an idling speed, take note of the RPMs in your car. Next, turn the engine off and disconnect the idle control motor under your hood.
What kind of problems does a Toyota RAV4 have?
2000-2004 RAV4 – Common Problems. A 2002 Toyota RAV4. Clogged Pistons: See 2005-2012 RAV4 – Common Problems. Failing ECM: The ECM (engine control module) in 2000-2004 RAV4 tends to fail prematurely, causing the transmission to act erratically. Symptoms include loss of power, jerking and hesitating when shifting, and launching on third gear.
Why do idle RPMs fluctuate in Toyota Prius?
If the butterfly is closed too much, the revs will drop too far forcing the engine ECU to open the idle control valve (IAC). It will then try to back off the air through the IAC, but since not enough air is getting passed the butterfly for idle, the revs will drop to far and so the surging cycle repeats.
Why does my car stop idling at 750 rpm?
It is stops idling at about 750 rpm – 1000 rpm. – emmanvazz Nov 11 ’15 at 16:00 Quite often surging like this is caused by not enough air getting passed the butterfly valve in the throttle body when the butterfly is closed. Under normal circumstances, there should be a very small gap around the butterfly to allow the air required for idle.
What is the Check Engine Light code on a Toyota?
The only check engine light codes the car throws are P0300 and P0301-4. Anyone have any idea what it could be? Resolved (11/15/15): It was a loose camshaft position sensor.
What are the symptoms of a bad EGR valve?
Depending on the particular problem, you’ll notice symptoms like rough idle, pinging or knocking engine sounds, an increase in emissions, poor fuel economy, hard starting and even stalling.
Why is my exhaust gas recirculation valve not working?
After miles of service, the exhaust gas recirculation (EGR) system — especially the EGR valve — will lead to engine performance problems due to carbon buildup, components mechanical problems, or vacuum hose leaks.