Prius (Gen 2) :: 2008 - Cleaned MAF And Throttle Body Now ICE Runs More Often

I cleaned the MAF in my 2008 (58k miles) with CRC MAF cleaner and cleaned the throttle body as well. There was a small puddle of oil in the intake manifold from the previous owner overfilling oil so I cleaned that up as well.

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Camry :: 2002 Idle Surging After Throttle Body Cleaned

I recently cleaned the throttle body and now it surges up and down. Not really sure what to check next. 2002 toyota camry 4 cyl.

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Elantra HD (2006-10) :: Internal Filter In Transmission Won't Cleaned - No Removable Pan

I called a local dealer requesting an appointment to get the auto trans fluid exchanged and the internal trans filter cleaned. The service rep told me they could not clean the internal filter in the transmission and there was no removable pan on the '07 Elantra transmission.

Is there a servicable fitler on the transsmission? If there is a filter should it be cleaned?

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Volvo - 240 :: 1989 - Changed Battery And Cleaned All Terminals Still Not Charging?

Installed new alternator cleaned terminals car started charging one week later battery died changed battery cleaned all grounds going to battery checked all connections coming from battery to alternator car is still not charging what should i look at next?

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Town Car :: Buzzing Sound Under Hood - Can Idle Air Control Valve Be Cleaned?

I have been getting a buzzing sound under my hood, usually in cold weather that lasts a few seconds, happens after I go about 1-2 miles from my house, did online research and it might be my IAC valve getting internally dirty.

Could replace it for $50.00, some You Tube videos show people cleaning theirs on other brands of cars, can the Ford IAC valve be cleaned up with a little carb cleaner and cotton swabs?

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Dodge - Neon :: 2002 - Revs Up In Park After Throttle Body Cleaned Out

Took my car in to get the tire and headlight replaced. Not my usual mechanic. While they were in there, they took it upon themselves to open up the filter and root around the throttle body. They said it was heavily gunked up, and asked to clean it. The car has been having serious starting issues, so this made sense to me, so I overlooked them examining a part of the car that had nothing to do with what I'd asked them to repair, and told them to go ahead.

Mechanic cleaned out the throttle body. Now he says there are scratches in it, he suspects from a mouse or rodent. Says it needs to be replaced, but he couldn't source a part today. Either way, I can't afford that. Says it's fine to drive, though.

Whatever they did, the car is now worse. Engine revs up high in park or when I start the car, and then drops dow and keeps revving rhythmically while idle. And I swear that while in drive, it's running faster even with my foot off the gas, and not dropping out of higher gears as fast. I go back and confront the mechanic. He says yes, that's all because of those scratches. But I don't understand how before, when it still had these scratches, WASN'T clean, when it was, in his words, all gunked up, it was working BETTER than it is now, when it's clean and just has those scratches?

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Avalon 2005-12 :: Cold-start Idle Is High After Cleaned Throttle Body

The other day I disconnected battery, then removed and cleaned the throttle body. Now cold-start idle is high, and erratic,

goes to 1,600, drops to 1,000
- back to 1600, drops, up to 1,400
-- wavers there, and then finally,
starts to taper down to steady idle of about 650-700 rpm.

Since battery disconnected, does not seem there would be a chance for TB to "un-synch" with cars computer.

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Buick - Century :: 2003 - Dies When Turning Left / ABS Sensors Keep Needing To Be Cleaned

My wife's car, a 2003 Buick Century, has died a couple times on her while driving. Each time has been while she was in the midst of a left turn, so I think that is relevant. Today it is a humid, raining off/on kind of day, but she says that she thinks the last time it did it was a dry day. When it dies, she pulls over, puts it in park, and restarts the car, it runs normal, no problems. She said she has turned the ignition switch off, and then starts the car, and has not tried just turning forward to start, however her daughter said that when it died on her, she could not turn it to start - she had to turn it off then back on and it started fine.

Her daughter said that she had it die once while sitting at a traffic light, so I may be off base thinking that it is related to a left turn. The car has about 155K miles on it, and the only engine work that has been done on it other than maintenance is that the catalytic converter was replaced a few years back, when it was plugged up.

On this same car, I have to spray brake cleaner on the ABS sensors (front) about every 3-4 weeks, when the ABS light and the TRAC Off lights come on. Is there some way to keep them from becoming fouled?

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Ford 6.0L Power Stroke Diesel :: EGR Valve / MAP Cleaned But Getting Code With Engine Light P0237?

The truck was running great besides a little black smoke on WOT and a little jerk while towing. No codes at all. I pulled the EGR valve and got it all cleaned up and reinstalled. I also had time to pull the MAP hose and clean it. I pulled the nipple out of the intake and cleaned it also. I didn't unplug the sensor, just cleaned the hose. Now I am getting an engine light, the MAP gauge reads 2.9, and my turbo gauge is at 22.4 at idle. The truck isn't running right. What should I try first? I don't see what I could have done wrong but this is a pain.

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Ford F-150 - 1997-2003 :: 2003 - Running Sluggish Even Replaced Plugs / Cops And Cleaned MAF Sensor?

I've tried everything I can think of and it still runs sluggish.

1. Had dealer change plugs
2. Changed Cop's
3. Cleaned MAF sensor

The 5.4L has slight miss and doesn't respond well at all when trying to pass or going uphills.

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Prius (Gen 2) :: Smart Key Fob Hit And Miss

Does the key fob have a battery inside? I noticed that within the last week, my smart key fob isn't working correctly, hit & miss. It's almost like the battery is dying. Does it in fact need a new battery?

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Golf/GTI VI :: 1st To 2nd Shifts Hit Or Miss In A Way

Almost a month of driving it and my 1st to 2nd shifts are hit or miss in a way. Because they'll be nice and smooth one day but the next, I end up with revs that hang. Like I shift up at 3k and they just stay there for a good second and then drop.

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S-10 :: 1999 Blazer Jump / Miss And Won't Get Over 55 Mph

I have a 99 blazer that was running fine then the intake gasket blew so i took it to our shop and we put the gasket set on and put it back together went and drove it it didn't really have any power when you get it to 2000 rpm then it died on me that problem was the connector to the coil was loose go drive it again still no power around 2 grand and it starts to buck and jump and miss and wont get over 55 mph we thought the timing was off so we advanced it it ran a lot better but put the code p1345 timing to high code we then retard the timing runs the same as the begin rough then it put the code p0101 maf sensor in there we put a maf on it go drive it it does a lot better runs alot smoother but now puts a egr code in it then if you drive it awhile it starts acting up again then puts the p0101 code back in.

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Alero :: 99 - Hesitation Comes And Goes / Start Up Like It Has A Miss

I have had a problem with my 99 Alero for some time. It is a 4 cyl 2 door and there is a hesitation that comes and goes I have changed the plugs,fuel filter and air cleaner and will still do it from time to time. I have also tried different grades of gas and injector cleaner.

It seems to do it most when we are going up an incline just before it shifts when the motor is getting the most load on it but it will also do it when I start it up like it has a miss. As I said this comes and gos and no lights have come on so I'm not sure if it has stored codes.

Recently I have tried Outlaw super concentrated fuel injector cleaner and I have not had the problem for the last week or so?

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Passat (B5) :: VR6 Started To Miss And Run Erratically

My brother in law drives a 97 Vr6 Passat (150K miles) that has started acting up. I'm a mechanic by trade, but he lives 800 miles away. The car started to miss and run erratically, and finally died. He took it to his regular mechanic and they installed a cam sensor. This worked, but it still ran poorly. They ran a compression check and say it has 180 psi in all holes on one bank, and 100 in all holes in the other. They are ready to condemn the engine.

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Elantra XD (2001-06) :: Car Sounds Like It Has A Miss

My 2004 Elantra has a rough idle when it starts up cold and sounds like it has a miss. When it warms up it smooths out. What could be the cause of this?

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Gmc :: Irregular Stumble Or Miss At Idle

This is more of an annoyance than a threat to driveability (so far) but it has me and the mechanics I deal with stumped. 94 GMC 350 with about 175 thousand miles. Prior to my emissions test I cleaned and gapped the conventional plugs, inspected the cap and rotor and gently cleaned off a small amount of accumulated 'snow' on the contact points and put a couple of cans of Seafoam in the tank. I passed the test without issue but for some unknown reason the truck has developed an irregular stumble at idle especially when hot.

I replaced the plugs and the stumble became less noticeable but still there. Mechanic has verified no problem with cap and rotor, ignition wires, coil, PCV valve, coolant temp sensor but did discover a very small leak in the intake manifold gasket which has been remedied but with no effect on the stumble. I had the truck out for a two hour highway drive today at sustained speed of 70mph and it ran beautifully but soon as I came back into town and hit the first stop light I noticed the stumble plus the tail pipe is too sooty after that much hwy driving. There are no stored codes and the SEL has never come on.

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Regal :: 99 Buick GS Has A Bad Miss At Random Times

I have a 1999 Buick Regal GS with a supercharged 3.8 liter engine and 161,000 miles. I bought the car off of my uncle and he said he would have to change plug wires every month to month and a half because it would start missing so bad. When I first drove the car it would quit on me at red lights and in parking lots, it only seemed to do it at low idle speeds. I live on a hill with a blacktop road and I had to give it a lot of gas just to pull the hill it was missing so bad. The plug wire had a lifetime warranty on them so I replaced them and it stopped quitting on me but I still had a bad miss at random but not as bad it would just be like hard jerks. I added sea foam fuel injection cleaner and had the fuel filter replaced. The mechanic checked the spark plugs and he said they were like new AC Delco. I also cleaned the MAF Sensor (the mechanic told me to and how) because the engine did not run steady at idle and it seemed to work that, but not the miss. Could my problem be the plug wires? They are carquest brand 7mm wires.

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Prius (Gen 2) :: Car Has Slight Miss / Knock At Startup

My second gen prius has slight miss/knock at startup. Done 35000 km. Doing around 19Km/Ltr. No other problem.

Any need for tuning, plug checking, needed at this stage?

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