Throttle bodies interchangeable?
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From: Uncle_vito on 28 Feb 2010 00:25 Clean the entire throttle body with carb cleaner. Open the throttle plate and get rid of all the carbon. Keep the cleaner out of electronic sensors, plastic parts, and connectors. You might have to loosen the throttle body to get behind the throttle plate. Sometimes the throttle plate is dirty so that it leaks so much air, the IAC value is not really in control, so clean everything well. Vito "Michael" <mrdarrett(a)gmail.com> wrote in message news:de8b8680-cc4d-4b5e-b45a-646ae300765c(a)b36g2000pri.googlegroups.com... On Feb 27, 6:19 pm, "Jeff Strickland" <crwlrj...(a)yahoo.com> wrote: > "Michael" <mrdarr...(a)gmail.com> wrote in message > > news:568f4623-dca2-4d14-a7b5-9649d5447613(a)z1g2000prc.googlegroups.com... > > > My wife's '99 Camry (~98k miles) shudders a bit when starting the > > engine while it's warm. > > > I'm considering swapping the throttle body (and the IAC valve attached > > to it) from my '96 Camry (175k miles) to her '99, and putting hers in > > my car. > > > Is this a bad idea? Will they even fit? Is the design significantly > > different? > > This is one of thoes, "if you gotta ask" questions. > > When it stutters enough to throw a Check Engine light, then change > something. No CEL thrown. I've heard this stuttering is due to a bad IAC valve. I cleaned it, and the problem persists.
From: Ray O on 28 Feb 2010 00:46 "Michael" <mrdarrett(a)gmail.com> wrote in message news:568f4623-dca2-4d14-a7b5-9649d5447613(a)z1g2000prc.googlegroups.com... > My wife's '99 Camry (~98k miles) shudders a bit when starting the > engine while it's warm. > > I'm considering swapping the throttle body (and the IAC valve attached > to it) from my '96 Camry (175k miles) to her '99, and putting hers in > my car. > > Is this a bad idea? Will they even fit? Is the design significantly > different? The 1996 V6 was the 3VZ-FE engine, while the 1999 V6 was the 1MZ-FE so with different engine series, the throttle body almost definitely will not fit. The 1996 and 1999 I4 engines were both 5S-FE engine but the 1999 produced slightly more horsepower and the body style was different so they are not likely to be interchangeable. Some additional information would be helpful in diagnosing the condition, and fixing the condition is probably easier than swapping the throttle bodies. What do you mean when you say that the engine "shudders a bit" when starting the engine while it is warm? Is it difficult to start when warm? Does it idle roughly when warm but not when cold? Does the condition persist the whole time the engine is warmed up or only after it is first started? When you cleaned the throttle body, did you check to see if the IAC valve moved freely when you were done? Was the inside of the throttle body oily or did it have a varnish-like coating? Did you clean the edges and inside of the throttle plate? What is the condition of the engine air filter? Check the black plastic tube between the air filter housing and throttle body for holes, cracks, gaps, etc. -- Ray O (correct punctuation to reply)
From: Ray O on 28 Feb 2010 00:49 "Ray O" <rokigawa(a)NOSPAMtristarassociates.com> wrote in message news:... > > "Michael" <mrdarrett(a)gmail.com> wrote in message > news:568f4623-dca2-4d14-a7b5-9649d5447613(a)z1g2000prc.googlegroups.com... >> My wife's '99 Camry (~98k miles) shudders a bit when starting the >> engine while it's warm. >> >> I'm considering swapping the throttle body (and the IAC valve attached >> to it) from my '96 Camry (175k miles) to her '99, and putting hers in >> my car. >> >> Is this a bad idea? Will they even fit? Is the design significantly >> different? > > The 1996 V6 was the 3VZ-FE engine, while the 1999 V6 was the 1MZ-FE so > with different engine series, the throttle body almost definitely will not > fit. > > The 1996 and 1999 I4 engines were both 5S-FE engine but the 1999 produced > slightly more horsepower and the body style was different so they are not > likely to be interchangeable. > > Some additional information would be helpful in diagnosing the condition, > and fixing the condition is probably easier than swapping the throttle > bodies. > > What do you mean when you say that the engine "shudders a bit" when > starting the engine while it is warm? > > Is it difficult to start when warm? > > Does it idle roughly when warm but not when cold? > > Does the condition persist the whole time the engine is warmed up or only > after it is first started? > > When you cleaned the throttle body, did you check to see if the IAC valve > moved freely when you were done? Was the inside of the throttle body > oily or did it have a varnish-like coating? > > Did you clean the edges and inside of the throttle plate? > > What is the condition of the engine air filter? > > Check the black plastic tube between the air filter housing and throttle > body for holes, cracks, gaps, etc. > -- > > Ray O > (correct punctuation to reply) > Also, what is the cold and warm idle speed? Does idle speed change when you turn the steering wheel or engage the AC? If so, how? -- Ray O (correct punctuation to reply)
From: Michael on 28 Feb 2010 01:24 On Feb 27, 9:46 pm, "Ray O" <rokig...(a)NOSPAMtristarassociates.com> wrote: > "Michael" <mrdarr...(a)gmail.com> wrote in message > > news:568f4623-dca2-4d14-a7b5-9649d5447613(a)z1g2000prc.googlegroups.com... > > > My wife's '99 Camry (~98k miles) shudders a bit when starting the > > engine while it's warm. > > > I'm considering swapping the throttle body (and the IAC valve attached > > to it) from my '96 Camry (175k miles) to her '99, and putting hers in > > my car. > > > Is this a bad idea? Will they even fit? Is the design significantly > > different? > > The 1996 V6 was the 3VZ-FE engine, while the 1999 V6 was the 1MZ-FE so with > different engine series, the throttle body almost definitely will not fit.. > > The 1996 and 1999 I4 engines were both 5S-FE engine but the 1999 produced > slightly more horsepower and the body style was different so they are not > likely to be interchangeable. > > Some additional information would be helpful in diagnosing the condition, > and fixing the condition is probably easier than swapping the throttle > bodies. > > What do you mean when you say that the engine "shudders a bit" when starting > the engine while it is warm? > > Is it difficult to start when warm? > > Does it idle roughly when warm but not when cold? Yes that's exactly it. Engine gets about 100 RPM when starting while warm (never when cold). Sometimes stepping on the gas cures it; more often lately it stalls and my wife has to re-start the car. Then it's fine. I cleaned by spraying throttle body cleaner and then with motorcycle chain teflon into the little rectangle in front of the throttle plate after removing the air intake hose. This isn't an IAC problem? I thought the '99 was famous for faulty IACs, and this is one of the symptoms. I'll clean the throttle body/plate when I get a spare moment Michael
From: Clive on 28 Feb 2010 07:24
In message <568f4623-dca2-4d14-a7b5-9649d5447613(a)z1g2000prc.googlegroups.com>, Michael <mrdarrett(a)gmail.com> writes >My wife's '99 Camry (~98k miles) shudders a bit when starting the >engine while it's warm. > >I'm considering swapping the throttle body (and the IAC valve attached >to it) from my '96 Camry (175k miles) to her '99, and putting hers in >my car. If it's a carburettor car then it's possible for the choke to be slightly closed on starting a warm engine and this could cause mis-firing. -- Clive |