AboutTim Expertise Any Toyota, especially Camry, Corolla, or Geo/Chev Prizm problems. Heavy experience with ECM,sensor,diagnostic issues, driveablilty, starting, fuel,charging, electrical, overall mechanical engine/transmission, and suspension problems. If I can't answer a question correctly in a timely manner I will search for the answer.
Experience I have 32 years experience in automotive field as a diagnostic technician. I analyze and correct problems on Toyota cars. I manage a car care organization for my church. The church has approximately 9000 members We provide diagnostic and repair services for low income individuals on a volunteer basis. I personally have owned and driven Toyotas for 27 years. My children, grandchildren, father and mother drive Toyotas. I have converted many friends to Toyotas.
Education/Credentials Unrelated; Computer Science Degree.
My experience has been self taught, always learning. I am not a parts replacer! I've seen way to many parts replaced by shops or individuals that don't have a clue, eventually I get called to resolve the issue. Most of the time its something simple like a bad ground, broken wire, gas cap, or dirty sensor(02 or MAF), etc.
Sensors are there to send a signal back to the computer that something is off slightly, that doesn't mean the sensor is bad!
Expert: Tim Date: 7/1/2008 Subject: 1989 Toyota Van hard start
Question My 1989 Toyota van is hard to start especially when the engine is cold. If it starts, the engine cuts off upon stepping on the gas pedal. When trying to merge in the highways, it hesitates when you step on the gas. I had changed the spark plugs, air filter and pcv valve before. What do you think is the problem? I thought of changing the fuel filter but hasn't done it before and need guidance on doing this. Is it a do it yourself job? Please advise. Thanks.
Answer Rolando,
Does it start ok when the engine is warm? Could be the cold
start injector, that should be tested. In addition, the TPS, CTS, and
MAF sensors should be checked. Get a Haynes or Chilton repair manual
for that vehicle and year, it will show you how to test these components.
