I have a 95 Toyota Camry LE with 294,000 miles. For a while now when car is in park or neutral, the idle fluctuates from a low of 500 rpm to 2000 rpm. In R, D, 2, 1 the car idles at 1500 rpm.
I replaced the Idle Sensor, Checked all tune-up related items? Car runs and drives ok,
other than the idle, and the obvious air/fuel mixture issues due to the idling causing the
ECU to stay confused, Car always starts, and acceleration is good. No stalling. But also,
at about 40 mph, it bucks like trying to change from D to OD, but it's not doing that. I
cruise at about 43 mph, with no foot on pedal? Gas mileage is 10 miles to a gallon.
Possibly an intake manifold and or vacuum leak. Can do a smoke test on the intake to see if you have a leak or use carb cleaner around the mating surface to the cylinder head, will get a idle rise if there is a leak.
19 years old, near 300,000 miles, I hesitate to offer a diagnosis or solution. The Camy is a fine, better than fine, above average life expectancy car. But 300,000 is about near what can be expected, and the reason I say I hesitate to offer a possible fix, it can become a money pit real quick and you may end up tossing money in to a new ..whatever it is...only for things to begin to domino on you. I have heard reliable sources talk of 400,00 miles and beyond, but that is not the rule. But if you really want to peruse this, you have OBDI and need to do the CEL flash pattern diagnostic. It's not as good as OBDII but can point you in a direction to eliminate much guesswork. It sounds like it's gear hunting, adding a transmission issue to the mix. The idle and going 43 with no pressure on pedal, along with the other things you describe makes me think vacuum leak. I had a Camry CEL flash pattern chart just a day or 2 ago, I will find it.
Yep Chris, Thank You, your post was not there. Your answer give me some confidence in mine, vacuum leak. Will effect transmission possibly also.
You have given me some directions to check into , I appreciate ite it. Really do. I don't feel at this point tha trans is an issue. it still bucks/jerks whether in D or OD regardless. Thanks for your help for now. I will go right out to use the Camry CEL Flash Pattern Chart. Thanks will get back to you guys soon.
I just picked up 1995 camry with 267,000 miles on it from a buddy he put a new battery in it a month ago and thats what I paid for the car anyway he had the same problem high idle me being the do it yourselfer I wasnt about to take it in after lubricating all cables semed to help but then right back to very high idle so I took the air intake hose off the throttle body and shazam it was very junked up after spraying it down with carb cleaner and wiping it out with clean rags she purs like a kitten at 700,800 rpm at idle problem solved for price of a can of carb cleaner and an hour of my time hope this helps you out it worked for me happy motoring
I want to thank everyone for their assistance.bIt was indeed the Ibtake Manifold Gasket. Car runs great again and now It's only $10.00 a day for gas instead of $20.
Idle air contro Valve needs replaced
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