Question about 1995 Pontiac Firebird

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Idleing to high

My car runs fine but when ever i drive or put it in gear it knocks real hard people tell its idleilng to high but i dont know can u help?

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  • 623 Answers

  1. throttle linkage resting against the carb rubber mount and not closing fully. Unusual problem which was cured by gently filing away part of the rubber mount.
  2. slightly deformed throttle linkage on the left carb which made it difficult for the spindles to return to resting position. Cured by dismantling and repositioning.
  3. the metal clamp linking the spindle bar to the accelerator pump rod was rubbing against the carb body, making return to the closed position difficult. Cured by dismantling and reassembling in the right position.
  4. length of the throttle rod was slightly too much. Cured by carefully turning in the plastic couplers and readjusting the holding nuts.
  5. slight air leak through bad gasket. Cured by replacing the gasket.

Posted on Jan 12, 2009

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I have a 1993 Ford Explorer that goes into high idle when I put in gear. It does this when the engine is hot or cold.


On some cars there's a speed sensor on the clutch or transmission. That might cause an idle problem.

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94 s10 blazer 4.3 cpi


Could be a vac leak, dirty throttle body, or faulty idle air control valve.
Is the check engine light on ?

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Some times when i start the car it idles up real high then drops down to normal idle speed. also when i put it into gear it wants to idle real low and die


Need to replase your throttle control sencor. The is what tell your cars computer to excelerate. . It could also be your fuel filter .But your make was common to have this problem. Take to a parts store near you and they will test for free. And you will know for sure. Wish you the best of luck.

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Accidently drained gear box oil , dont know where 2 put it back in , 2007 kia 4 cylenda manual


top of the engine?

im not aware of any manual cars that dont run the gearbox and the engine on the same oil.

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Engine runs but sputters when put in gear


Sounds like leak in high pressure side of turbo to inlet manifold tube.
Results in gutless or no performance but idle & revving in neutral ok.
Check for splits or loosened joints.

May 26, 2010 | 1987 Nissan 200SX

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Engine knock...


Oil pressure might actually be a bit high for idle. High or low oil pressure in an older engine tends to be indicative of some serious issues. Oil pressure that is too high tends to be a clue that you have serious carbon build up. That aside, have you tried running a higher octane fuel, or perhaps adding an octane booster to your normal grade? Pinging can become knocking in a badly worn engine. One recommendation: At your next oil change try substituting a quart of marvel mystery oil or lucas engine oil treatment in place of one quart of your normal oil. Both have some pretty good track records for helping to free up sticking valves and break up carbon in older engines. I'm an old timer myself, and I personally swear by Marvel for older engines. There is no "rebuild in a can" but Marvel comes close. Give those a shot, let me know what happens.

Feb 06, 2009 | 1990 Ford Bronco

1 Answer

Engine knock when going uphill +...


Oil pressure might actually be a bit high for idle. High or low oil pressure in an older engine tends to be indicative of some serious issues. Oil pressure that is too high tends to be a clue that you have serious carbon build up. That aside, have you tried running a higher octane fuel, or perhaps adding an octane booster to your normal grade? Pinging can become knocking in a badly worn engine. One recommendation: At your next oil change try substituting a quart of marvel mystery oil or lucas engine oil treatment in place of one quart of your normal oil. Both have some pretty good track records for helping to free up sticking valves and break up carbon in older engines. I'm an old timer myself, and I personally swear by Marvel for older engines. There is no "rebuild in a can" but Marvel comes close. Give those a shot, let me know what happens.

Feb 06, 2009 | 1992 Buick LeSabre

1 Answer

1996 Ford Tuarus


You really have to think a bit about when those sometimes are. Is it only when the engine is already warmed up? Is it only when the engine is cold? If you have a tach on the dash, what is the real high idle speed of the engine? How many rpms? Does the transmission shift hard or smoothly?

Sep 26, 2008 | 1996 Ford Taurus

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