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Help on Toyota Avalon low idle...

Sent to Car Experts June 23 2006 at 12:50 PM
   

My 1998 Toyota Avalon has a really low idle and sometimes it would not start. I have to hold the gas for atleast 3 mins specially on first start to get it going. I have replaced both wires and sparkplugs and did not do anything. Any help would be appreciated.

 

Optional Information:
1998 Toyota Avalon 1MZFE

Already Tried:
Replaced spark plug and wires, Cleaned battery terminal./p>

Customer (name blocked for privacy)
Status:  Closed   Value: $15
Info Request
June 23 2006 at 8:34 PM (7 hours and 44 minutes and 11 seconds later)
         
REPLIED to Info RequestCheck Mark

How many miles are on this vehicle?

Has the Check Engine Lamp illuminated?

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RIP -- Lead Technician -- 100% Positive Feedback on 2111 Car Accepts
A.S.E. Master Technician, Advanced Level, Smog - European, Domestic, & Asian -- Car Category Mentor
Reply
June 24 2006 at 12:40 AM (4 hours and 5 minutes and 55 seconds later)
         
Reply to RIP's Post: Car has about 196000 miles.
No check engine light.
Customer (name blocked for privacy)
Answer
June 24 2006 at 6:44 AM (6 hours and 4 minutes and 14 seconds later)
         
ACCEPTEDCheck Mark

This sounds like a typical Toyota failed IAC (idle air control) fault. The idle air control valve is designed to control the idle during different situations, such as a cold engine start, when the a/c is on, during turns, etc. The most common symptoms are, crank no fire cold, crank no fire warm, low idle, too high of an idle (approx 2000 rpm), idle doesn't increase when a/c is on, stalling when comming to a stop, will fire when the gas pedal is applied. This condition can be tested at any repair facility equpped with factory level scanner software. Also, when the valve is replaced, the throtle body and blade should be thoroughly cleaned of carbon buildup, as well as the IAC passages in the throtle body. This valve was such a common failure during the '95-'00 year span on all Toyota cars, that it was replaced on avarage at 60k miles, with an updated valve, capable of lasting longer. If you are the original owner, you may recall having this part replaced before.

-Rip



Please click on "ACCEPT" if I was helpful-or if you still need assistance just reply, before leaving any feedback thanks
Picture
RIP -- Lead Technician -- 100% Positive Feedback on 2111 Car Accepts
A.S.E. Master Technician, Advanced Level, Smog - European, Domestic, & Asian -- Car Category Mentor
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