3.0 Throttle Sticking

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Mar 25, 2007 | 06:48 PM

jv42287

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3.0 Throttle Sticking

3.0 6cyl, 120,000 mi, 5spd, 4x4. Engine runs fine and all is well to my knowledge. However, the throttle seems to stick after i run it above 2k rpm for a while. Also, if i try to bring it down by putting it in gear the idle just goes up on its own after i press the clutch. Other than that it just idles high, which i have tried to fix. I cleaned the MAF, replaced the IAC, and checked the vacuum hoses for the most part, there is a vacuum. I am not sure what to do next. Any ideas?? Thanks, John

Mar 25, 2007 | 07:14 PM

chbtech

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I would remove the TPS to make sure it's not worn, binding, broken, etc. After that, check for fault codes.

Mar 25, 2007 | 07:37 PM

JeremyJ

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i have a sticky idle also,when i come to stops, i push in clutch and rpm's rise to about 1200-1500.

i have yet to solve problem thought i tested my iac and it works fine.

i have no codes according to my scanner.

Mar 26, 2007 | 12:29 AM

Benaghetto

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From: Liberty, MO

A buddy of mine's camaro did the exact same thing before he sold it. I never could figure out to the best of his limited knowledge what caused it. He never was one for maintenance either so I firugred in his case something simple is what caused it. Tho his O2 censors always threw him a fit. When was the last time you did a thurough tune up on your truck? I see you did clean the MAF and replace the IAC. What did you use to clean the MAF? BTW what year is your truck?

Mar 26, 2007 | 12:52 AM

Benaghetto

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From: Liberty, MO

Also, have you verified the fact that your butterfly is 100% closed at idle? Try starting the engine and removing the intake tube from the throttle body to check it out. Just be careful of that fan!

Mar 26, 2007 | 07:17 AM

JeremyJ

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if the butterfly is open, how would you fix it?

Mar 26, 2007 | 07:57 AM

fordboy_52

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From: Abilene Kansas

new return springs

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Mar 26, 2007 | 08:56 AM

fordboy_52

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From: Abilene Kansas

should be some springs on your throttle body. one of mine broke and i replaced it with a standard spring set from the parts store

Matt

Mar 26, 2007 | 09:15 AM

#10

JeremyJ

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and may i ask how your truck was acting when it broke?

thanks for the advice.

Mar 26, 2007 | 10:53 AM

#11

fordboy_52

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From: Abilene Kansas

my pedel was just easier to press and didnt return to idle correctly, went underhood and reved it on the engine and noticed it had nothing pulling it back

Matt

Mar 26, 2007 | 02:33 PM

#12

jv42287

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It is a 97, sorry about that. Also, i cleaned the MAF with carb cleaner, like the tech post says to. I will have to check out the throttle springs and try to clean that out. Thanks

Mar 29, 2007 | 09:55 AM

#13

JeremyJ

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i dont see how pushing the clutch in would cause the idle to go up due to bad springs.

i need to clean my maf and check my tps.

Mar 29, 2007 | 05:35 PM

#14

97ranger xlt

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From: FL

Quote:

Originally Posted by JeremyJ

i dont see how pushing the clutch in would cause the idle to go up due to bad springs.

i need to clean my maf and check my tps.

pcv valve.

Mar 29, 2007 | 11:34 PM

#15

Benaghetto

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Joined: Mar 2005

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From: Liberty, MO

It'd rev up due to less stress on the engine! Its like turning your AC off.

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