96 Camry 4 cyl - 70K - Car stalls when I stop occasionally - No Check Engine Light On, had a major tune up around 50K miles. Car will also hesitate when accelarating then will catch up - Just had Fuel Pump, and Timing Belt service done.
Car will take a couple of tries to start - I check all connections and can get it to turn over - Also ran at 2000 RPM in Park - Put into to Drive car stalled
Bringing in for Service on Weds 11/21 - I need some suggestions
Check the idle air control valve, throttle position sensor, EGR, and fuel pressure.
November, 27, 2007 AT 11:18 AM
So my guy replaced the IAC - he said it was filthy and that Toyota Parts person said it was a common problem - But car still has the same problem - Except car will stall once it has been driven around - No problems when cold. Still hitting a dead spot at times when accelerating. I am going to suggest the Throttle Position Sensor - My guy says there are loads of sensor - I just don't want to keep throwing money in to the car
Hard to tell a Mechanic what could be wrong - when all I do is work on a computer
Any help would be appreciated
November, 27, 2007 AT 2:15 PM
Hard to tell a Mechanic what could be wrong - when all I do is work on a computer. Take my suggestions and have him inspect/test it-you're paying him-you call the shot. Me too! All day long I answer people's car problems-what makes it tough is am not with the vehicle wish I was
You have a nice holidays and good luck
December, 3, 2007 AT 2:07 PM
So Mechanic replaced IAC - mechanic mentions that Fuel Pump is shutting down once car heats up - but there is spark
I had the Fuel Pump replaced was under warranty as I had replaced again this past weekend - By another shop that was dishonest - they were trying to get me for diagnostic testing - Once I brought to my guy he claimed they did an abortion to the supporting are to fuel - that they didn't replace the whole assembly
December, 3, 2007 AT 5:58 PM
Have the mass airflow meter check terminal Fc it grounds the circuit opening relay then it powers the fuel pump. Also the EFI main relay.
December, 4, 2007 AT 7:48 AM
Are your comments standard procedure when replacing a fuel pump? I hope it works I would hate to spend $500 and it doesn't
Thanks for your help - How is the weather in Guam it is a nice steamy 20 degrees in New York
December, 4, 2007 AT 1:39 PM
Weather is perfect under a coconut tree, just don't get hit with the nuts.
About the situation-see below how the fuel pump gets its power source. The circuit starts at the EFI fuse/Main relay/Circuit Opening Relay/Air flow meter, then fuel pump one of this is causing the problem. If it was me I'll check the fuel pump connector 1st for power before I replace the pump.
December, 5, 2007 AT 1:30 PM
So he has the car running for over an hour and it will not stall - so he can pin test it. Checking everything still nothing harnesses, connections, I don't know at this point
I gave him all of your suggestions
December, 5, 2007 AT 3:32 PM
Tell him to direct power to the pump from the battery. Positive to blue/black and negative to white/black on the fuel pump connector. Comeback and tell me what happened.
December, 6, 2007 AT 7:23 AM
Yesterday he checked all connections to fuel pump like you said - Had the car in the garage running for 3 Hours - no stalling - Car was blocked in as roof was being replaced - He is not sure if car didn't stall as it wasn't being driven or that it was in a warm garage
I would think if car ran that long in " Park " maybe it was a loose connection - How can you see if Fule pump was truly replaced?