Question about 1998 Toyota Avalon
Have replaced mass air flow sensor, fuel pump is good changed spark plugs and wires gets fire but will not start
No reason at all, that a dealer or local shop
can not find some type of problem
No way we can guess from the internet, with no
vehicle to test,you know that
Posted on Nov 07, 2014
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Try cleaning the throttle body.Check the air-gap for the pick-up coil inside the distributor assembly(use a brass feeler gauge)
Check valve clearances if needed(possible tight intake valve adj.)
Check base timing(follow instr. via under hood label)
Hope this helps.
Posted on Mar 17, 2009
The first thing to do is try another key. Perhaps your transponder key has failed.
You can identify a 'transponder key'; it has a wide part wher you turn it.
Posted on Sep 17, 2009
Have you looked at your idle air control valve
What is it? This is an electrically driven valve that allows additional
control over the throttle at idle
Where is it located? The IAC is located on or adjacent to
the throttle body and consists of a small device held on by two bolts with an
How does it work? When the throttle is closed the throttle plate closes off any air from the intake manifold. In order to stop the engine from stalling due to lack of air the IAC opens a small valve allowing air to pass from the air ducting to the intake manifold. Often the IAC components consist of an air inlet port in the inside wall of the throttle body, immediately in front of the throttle plate, with a similar exit port behind the throttle plate. Connecting the two ports is a motor driven valve. When the valve is opened air effectively by-passes the closed throttle plate to maintain the engine at idle. The IAC also augments the throttle when additional power demands are put on the engine such as steering.
Symptoms of faulty IAC
How to check? Physically remove the IAC but keep the electrical connection to it. Temporarily block off the now open ports on the throttle, turn the engine on and examine the IAC valve action in response to additional loads (power steering inputs etc). The valve should open and close according to demand.
How to fix? If the motor of the IAC has failed then replace the IAC. If the valve is gummed closed by baked oil and carbon then clean it thoroughly with carburetor choke cleaner spray and a cloth. Similarly if the entry and exit ports on the throttle body to the IAC look blocked again clean them out thoroughly.
Posted on Jun 03, 2010
Testimonial: "Fast response and good advice, I'll try these suggestions and let you know the results."
Tips for a great answer:
Nov 02, 2014 | 1998 Toyota Avalon
May 15, 2012 | 1998 Toyota Avalon
Feb 20, 2011 | 1998 Toyota Avalon
Oct 02, 2010 | 1998 Toyota Avalon
Aug 10, 2010 | 1998 Toyota Avalon
May 08, 2010 | 1998 Toyota T100
Oct 21, 2009 | 1998 Toyota Avalon
Sep 05, 2009 | 2000 Toyota Avalon
Jun 10, 2008 | 2000 Toyota Avalon
167 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: