Question about 1991 Toyota Camry
Car isnt shifting into overdrive runs rough at idle
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Posted on Jan 02, 2017
Clean/Inspect Intake, MAF sensor, IAC valve for proper operation. Also check for vacuum leaks within the air intake hose and intake components. Hopefully this helps
Posted on Jul 20, 2009
Sounds like you have an intermittant problem, check all your wirirng, then you can move on to ignition related coil reluctor wheel ( in side the distribitor electronic control module again inside the distribitor. It could also be a fuel system problem do you hear the fuel pump come on when you turn on the key, the fuel pump should cycle until it devlops adequate pressure ( usually 3 - 4 seconds)
Posted on Sep 23, 2009
SOURCE: 94 camry. 2.2 fed emissions.
Before we both knock ourselves out with fuel injector testing. Hook up a Digital voltmeter (DVM) to upstream O2 sensor and lets see how she is burning. Remember positive lead of DVM to signal wire and negative lead to ground. Anything above 550 mV is rich anything below 350mV is lean. Be mindful that an exhaust leak the size of a pin hole in this region can cause a rough idle. A healthy reading should bounce between 550mV and 350 mV.
Next to test is O2 is working block off air in take making mixture rich and see what O2 says about it . Then pull off a vacuum hose (a lean condition) and see if DVM drops to 200to 300mV's.
Keep me posted.
Posted on May 10, 2010
White smoke is a sign that you are burning antifreeze. You more than likely have a leaking head gasket or else a cracked head. Either way not good. Check your radiator for loss of coolant and air bubbles.
Posted on Feb 18, 2011
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