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#1
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C230 PROBLEM, HELP.
NO CEL, c230 1998, 124,000 miles
FELT A KICK TWICE AT 75 M.P.H. CRUISING 2 TIMES LAST WEEK, FELT IT 2 TIMES AT COMPLETE STOP TODAY WITHOUT CAR MOVING at red light. FELT A KICK WHEN PUTTING INTO DRIVE AND REVERSE AND STRANGE RESPONSE FROM GAS PEDAL, MEANING NO RESPONSE WHEN FLOORED AND THEN RESPONSIVE A LITTLE YESTERDAY, AND THEN NORMAL. Turned off engine, left it alone for 4 hours and when started, back to normal. I cleaned throttle body 2 years ago myself. I'M THINKING FUEL PUMP,F.P. REGULATOR, RELAY BUT NO STRANGE NOISES FROM REAR OF CAR LIKE I HAVE READ FUEL PUMPS DO. HAS NEVER DIED ON ME. MECHANIC SAID TO WAIT TILL IT DOES IT ALL THE TIME?? I DON'T KNOW WHAT IS UP? I have noticed a stumbling at stop light on occasion, but car not turning off and revs are normal and not high. Changed MAF AT 40,000 MILES, NOW AT 123,000 MILES.NO OIL LEAK. NO HEAD GASKET LEAK. SORRY for ALL capitalizing, just frustrated, and when mechanic tells you have to recreate it.....this is all intermittent!! Got to find a good mechanic that knows how to diagnose these things in Houston, don't want to start guessing and changing parts....expensive and wont fix problem unless lucky! Last edited by LORE BENZ; 05-07-2009 at 12:54 PM. |
#2
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Yeah, you should lay off the caps, some people won't even respond if you are using caps. You describe some different things. An occasional stumble at a stop is normal air pump test, once per warm-up cycle. I am not sure exactly what you mean by kick. The most extreme symptom you list I think is when the gas pedal did not respond. Of course the first question is about the check engine light and codes.
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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine) 1988 F150 144,000 miles (leaks all the colors of the rainbow) Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra |
#3
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Is it going into the "limp" mode? Is that what you are describing as "strange response on acceleration"?
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BENZ THERE DONE THAThttp://www.peachparts.com/shopforum/...c/progress.gif 15 VW Passat TDI 00 E420 98 E300 DT 97 E420 Donor Car - NEED PARTS? PM ME! 97 S500 97 E300D 86 Holden Jackaroo Turbo D 86 300SDL (o\|/o) |
#4
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sounds to me like throttle body going south[electronic accelerator] very easy to change although a little pricey.
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David S Poole European Performance Dallas, TX 4696880422 "Fortune favors the prepared mind" 1987 Mercedes Benz 420SEL 1988 Mercedes Benz 300TE (With new evaporator) 2000 Mercedes Benz C280 http://www.w108.org/gallery/albums/A...1159.thumb.jpg |
#5
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Today in park, rpm went up to 900 down to 400 and back to 700 rpm.
"Kick" is like you hit gas and off pedal quickly, or when cruising do the same. No CEL so not possible emission, like o2 sensor. |
#6
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David,
What is the failure mode of the throttle actuator? I would think it should be very reliable. Is it just a stepper motor and some gears?
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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine) 1988 F150 144,000 miles (leaks all the colors of the rainbow) Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra |
#7
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WELL, PAID 100 bucks today to have a mechanic tell me that it is the THROTTLE BODY ACTUATOR AND possibly the TRANSMISSION MODULE, after hooking car up to his computer.
What does the transmission module do? David, I could have saved 100 bucks with you, ha, ha!! |
#8
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Where to buy one for good price, and a how to change it myself are next 2 questions?
replace or clean? Last edited by LORE BENZ; 05-07-2009 at 08:49 PM. |
#9
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I CLEANED IT and things are better, when do you change those as opposed to clean?
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#10
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SPOKE TOO SOON.
On freeway today cruising at 65 mph and felt 2 short kicks form car, like hitting the accelerator hard. Guess that throttle body cleaning did not help. |
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