Ford - Explorer :: 2004 - Engine Skipping / Shaking After Replacing Spark Plugs?

I just changed my spark plugs the other day and since then my engine is hard idling and skips and jumps while I'm driving it. I'm being told I either need to change the spark plug wires or the coil packs. So my question is which do I need to change? And is there anyway to test which one I need to replace?

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Chevrolet - Tahoe :: 2003 - Reduced Engine Power Error

From time to time, my Tahoe gives me the "Reduced Engine Power" error, and I lose acceleration capabilities and have to pull over. After a min or 2, I can go again, but the check engine light stays on. With no rhyme or reason, the light will be on or off on the next start up. The problem may or may not happen during a short ride or may happen quite often. I have replaced the Accelerator Pedal sensor, so that is not the problem, I'm assuming.

I've been told that it is the Throttle Body that needs to be replaced, but no mechanic can confirm. They just want to replace it and the pedal. I would really like to keep this truck for a couple more years. Other than this problem, the Tahoe has been pretty good to me. Here are the codes that have been read: P1125, 1516, 2120, 2125 ....

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Chevrolet - Silverado1500 :: 2003 - After 5 Miles Reduced Engine Power / Restarted Then Goes Fine?

This has been a decent truck... lately you drive for 5 miles or so.. it goes to reduced engine power. if you get to side of the road and turn completely off and sit maybe 10 seconds or so, it goes fine again.... I have tried to get a computer reading, but by the time I have gotten it anywhere, the check engine light is off again..

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Chevrolet - Tahoe :: 2003 - Reduced Engine Power Message / Speed Losing

I have a 2003 Tahoe that I love but is driving me crazy with a "Reduced Engine Power" message. I am driving along and suddenly it dings at me, the message center says "reduced engine power" and I am losing speed. It goes into a "limp mode" in which I cannot accelerate, it cannot pull itself up a hill, and the engine misses badly. I can pull over, shut it off for a couple of minutes and then start it up and run again just fine until it decides to do it again.

There seems to be no rhyme or reason, one day it did it 4 times w/n the first 20 miles, then ran 100 miles w/o doing it at all. I recently took it on a trip that normally takes me 1 1/2 hours, it took 2 1/4 hrs that day because I had to pull over so many times. I was having to stop every 3-4 miles by the time I got there. My usual mechanic has completely given up, told me to trade it. I have had it to another mechanic for over a month now, 3 times he has thought it was fixed, but it wasn't. One time, I didn't even make it the 5 miles to my house before it acted up again.

One other note on this: this past trip I made, I left early in the morning and my lights were flickering high/low. . . this went on for several miles. Finally my lights quit flickering, then I lost engine power, pulled over, shut it off. When I started it back up, the lights started flickering again. The cycle seemed to continue, once the lights would settle, the engine would lose power. I took it to a parts store and had the battery and alternator checked. They said both were fine. (Had never noticed the light thing before, but I can't think of a recent trip after dark.) How I can pass along to my mechanic?

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Chevrolet - 1500 :: 2003 - Reduced Engine Power Light Along With P1516 Fault Code

I have a 2003 Chevy 1500HD 6.0L 4x4. I've recently started getting the "Reduced Engine Power" light along with the P1516 Fault code. I've checked all the wires going to the TAC Module, TPS, and MAP, all appear to be in good condition. The Throttle Body is clean and the "flapper moves freely with no sticking. I only have this issue when it is warm outside. Recently we've had fairly code days between 32-50 degree weather but on the few days that it has gotten warmer, I've had the issue. Since it seems to only happen when its warm, I believe it to be a moisture issue, but I'm not sure.

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Camry :: 2006 Shaking After Replacing New Spark Plugs

I have a 2006 Toyota camry v6 1mz-fe engine. My buddy changed the all 6 spark plugs using Toyota oem denso.

The car drive weird after that. When I am on the stop light, the car is shaking ( coming from the engine area ).

When I am driving 60 mph, it shakes .

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Camry :: 2008 Toyota CE - P0101 Code After Replacing Spark Plugs

This past Sunday, I replaced the spark plugs on my 2008 Toyota Camry CE, following one of the sticky DIYs. My car has approximately 107,xxx miles.

Last night on my drive home from work my CEL came on. First time seeing a CEL light since my BMW days, . Luckily, I have a OBDII scanner at home and after running the scanner, it gave me the following trouble codes:

- P0101
- P0172

I went ahead cleaned the air filter (I have an Injen SRI installed).

After doing some research on the interwebs, I have concluded that this code has to do with the MAF. Time permitting, I am going to clean the MAF sensor later tonight. In the meantime I reset the CEL, to see if it will come on again.

My only question, which I am unable to find an answer to, is:

Can there be a possibility that the P0101 and P0172 trouble codes be related to me replacing the spark plugs, or is this just a mere coincidence?

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Chevrolet - Uplander :: 2007 - Reduced Engine Power - Engine Light Came On

I have a 2007 chevrolet uplander. Yesterday it started giving a message of reduced engine power and the engine light comes on.

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Chevrolet - Malibu :: 2010 - Engine Reduced Power / Disabled

I have a 2010 Chevy malibu LT with 120000 miles. And today while I was driving my engine disabled and there was a message of reduced engine power. After letting it sit I turned the key and nothing happens all the lights and things come on but the reduced engine power and engine disabled shows up. The car won't crank up. Earlier that day I had my engine coolant temperature sensor replaced. What is going on or what needs to be done? I am getting so frustrated with this car.

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Impala - Chevrolet :: Changing Spark Plugs But Can't Get Grip On Rear Bolts?

I am trying to change spark plugs and wires on my 2001 Impala with a 3.8 liter. I was able to get the boots off of the front plugs OK but I am having trouble getting a good grip on the rear ones. It seems like they have glued themselves to the plugs. Removing the boots?

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Chevrolet - Trailblazer :: 2003 4.2 Engine Idle Surge With AC Compressor

The ac condenser unit will click every 7 seconds followed by a 3 to 400 rpm surge for 5 seconds or so, drop rpm then repeat. Belt looks fine, no slipping, new plugs a month ago, newish air and gas filter, does it in neutral or drive, read many ideas from low or high freon, iac, throttle body cleaning, o2 sensor? no codes thrown. Maybe coincidental but was discussing o2 upstream sensor recently on this board. The car experiences the same symptoms while driving.

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Camry :: 2003 - No Spark In Plugs

'03 Solara 4 cyl, 135K repl. Fuel pump, 45# press ok, NO scan tool code(s), turns over fine, no spark 2 plug. Started/ran fine before fuel pump change.

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Toyota - Corolla :: 2002 - Tighten Spark Plugs To Same Torque Specifications As Regular Plugs

I am changing my own spark plugs for the first time. I have a spark plug wrench, dielectric grease, anti-seize compound etc.

I have a Haynes manual for my 2002 Toyota Corolla. The book was written before Irridium plugs were used. Should I tighten the spark plugs to the same torque specifications as regular plugs? The book says 158 inch pounds. How do I know I have tightened them to the right amount?

How do I avoid cross threading the spark plugs? What happens if you cross thread the spark plugs (assuming the car seems to be running fine)? Would I need a new engine or expensive repair when it is time to replace the spark plugs again?

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Accord :: Oil In Spark Plugs Tube And Leaking Out Of Engine

All the oil leak out of engine after a oil change? and i have oil in the spark plug tubes

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Phaeton :: How To Access And Change Spark Plugs On V8 Engine

I would like to have a look at the condition of the ignition plugs in my V8 Phaeton. According to the service plan, it's already time to change them and it also seems that the car has lost some power when accelerating.

Is it even possible to change them with the 'usual' knowledge (knows how to change a tire and so on) or should I better go to a professional.

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Suburban :: 2003 - Reduced Engine Power / RPMs Drop To Below 1000

IOur 2003 suburban often gets a "reduced engine power" displayed by the computer and the RPMs drop to below 1,000. The vehicle will not accelerate and will not go above 1,200 RPMs no matter how much gas it is getting. Flooring the gas pedal has absolutely no effect and the truck continues on its merry way at about 20 miles per hour.

I have been told by various amateurs that it is the gas lines or electronics that regulate the gas flow. The reduction in engine power seems to happen randomly, but most often if the vehicle is idling for too long (and I'm sure the 110 degree heat doesn't work). I can get it fixed much quicker if I know what the problem may be.

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Golf VI R :: Engine Knocking Under Load - Changing Spark Plugs?

I got the APR ECU Tune in June along with VW Racing air intake. Car runs great except... the engine is knocking under full load. The guy who did the install heard it right away but I just thought he was trying to up sell me. He suggested new spark plugs.

Well it's two (three?) months later and I've come to accept that I can't drive it in the 91 program anymore (I paid extra for the ability to switch programs - lucky!!). I was switching back and forth between 91 and stock and I can hear the difference.

Are spark plugs the likely fix, and how do I choose the right ones for my Mark VI Golf R? "one step cooler"??

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Golf IV / Jetta IV :: Just Did Spark Plugs Now Check Engine Light On

I just did the plugs and now the check engine light is on?

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Silverado :: 2003 2500HD - Code P1516 TAC Module / Reduced Engine Power

My truck is an 2003 2500hd with the 6l engine and 89k miles. From time to time I'm getting message "reduced engine power". Usually at the morning after 10-15 minutes after starting. I have to pull over, shut it off, wait few seconds then restart it. The ses light goes off usually by end of the day ( or after few hours ). When scanned by chevy tech showing code P1516 Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance. I have new battery with new main cable. TAC Module was cleaned.

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