Cadillac - Escalade :: 2009 - Shudder Going Uphill?
I own a 2009 Cadillac Escalade (no I don't write rap tunes) and for the past 5 years it has been an excellent vehicle to drive. It still is, but under certain conditions I am experiencing a shudder which lowers the confidence that I usually have in my vehicle. Specifically, when I am climbing a hill and the transmission is in a higher gear, say 4th and the RPMs are relatively low, say 1800, I feel a shudder as the car goes up the hill. When I let my foot off the gas the shudder stops. If I manually shift into a lower gear and raise the RPMs, the engine responds with power galore and I climb the hill without any effort and without any shudder (most of the time). The engine is smooth and is not sputtering when this shudder happens. I do not hear any unusual sounds under the car when this happens.
I took it to the GM dealer and they did all they could (analyzed the car for codes, monitored fuel flow rates, searched for GM bulletins, etc) but their response was "we experienced the shudder but cannot find the issue - bring it back when it gets worse". I read that BG44K will do a good job of cleaning the fuel system in the engine so I tried that but nothing changed. I have about 50K miles on the car and did my 50K maintenance just before a cross-country trip; on the way back from this long trip is when this issue started. The 50K maintenance included changing the transmission fluid and cleaning the filter (not replacing it), changing the differential oil, the transfer case oil, engine oil and filter, inspecting the vehicle, etc. I will continue to drive the vehicle and will bring it back to the dealer if it gets worse, but I'm wondering what I'm supposed to do if it never does and I continually experience this shudder. Or what happens if it gets worse all of a sudden and I'm unable to drive the car up a hill at all?
Cadillac - Escalade :: 2005 - Rear Tail Lights Bulbs Don't Light Up
2005 Escalade-rear tail lights-water in tail assembly. Bulbs blew. Replaced bulbs. Will not come on when I turn on headlights. They do come on when you depress the brakes and when you use the hazards or signals.
View 2 RepliesMaintenance / Repairs :: Reduced Engine Power When Driving At 70 MPH
I was driving my truck back home (70mph) and dashboard said reduced engine power so it slowed me down to 50 then 40 pulled to the side turn it off disconnect battery connected everything again turned work fine for at least 300 ft and turned off completely now it wont start... What could be ? I switch the throttle body and is not it....
View 11 RepliesFord Super Duty (1999-2016) :: Reduced Engine Power Popped Up On Screen While Driving
I just picked up a 2012 F350 lariat with about 65 000 miles on it, and while driving home, it popped up with reduced engine power on my screen. Tried adding DEF fluid, seems to right up to the top already, no actual change in engine performance either. Also, no check engine light or service light on (wrench light)....never run across this before and am totally thrown off. Haven't taken to dealer yet...
View 1 RepliesChevrolet - 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 ....
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.
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.
View 14 RepliesChevrolet - Trailblazer :: 2003 - Engine Power Reduced After Replacing Spark Plugs
I just replaced spark plugs and now it is running rough and reduced engine power light is on. did not mix up wires or coil packs. did one at a time.
View 13 RepliesChevrolet - 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..
View 5 RepliesChevrolet - 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?
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.
View 6 RepliesFord Fuel System :: Engine Showing Symptoms Of Reduced Performance And Stalling
I have 2 70's trucks, one with a 360 and one with a 390. Which I don't think makes any difference. The problem is, I experienced poor operation in that after driving for a while engine showed symptoms of reduced performance and stalling and shortly stalling all together. It would not restart even after changing fuel filters and checking pressure. It has a two barrel holley. I took the top off the carb to check for debris in the jets. What I found was a clear jelly like substance. I pulled it out and set it in the open air. After a few minutes it evaporated. I concluded it was something like alcohol created by the vacuum in the carb. After that the truck ran fine until it happened again a few days later. Always after sitting it would restart. When it did not I found the substance in the carb. Now I have the same problem with the other truck. It sounds like a few of the cylinders are starving for fuel and the carb is all but new with twin fuel filters. Ignition is fine on both trucks after hooking up the scope. What is this crap and how to get rid of it?
View 4 RepliesChevrolet - 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.
View 6 RepliesFord 6.7L Power Stroke Diesel :: Reduced Engine Power Warning Message Pop Up
I have seen this pop up on the truck I think 3 times now over the first 4000 miles on the truck.
Usually it's when I'm on the highway around 70mph or so.
It comes on for a few seconds, then goes away. I do have an exhaust / tune on the car.
Ford 6.7L Power Stroke Diesel :: 2016 F350 - Reduced Engine Power
2016 F350 6.7; ccsrw, 22K on truck (zero issues previously). Stock other than titan fuel tank that was installed at 100 miles.
700 miles into todays trip, pulling trailer, snowing, in 4x4, tow/haul; pulled out to pass, got into it for a bit and got "reduced engine power" error, truck slowed, would not show boost on gauge, wouldn't rev over ~1900. CEL is on.
Pulled over, stopped, checked under/over and didn't find anything. Shut off truck, started back up, CEL is still on, but truck runs OK. Ran for another 20 miles or so and was OK for how I drove it (including boost showing on gauge). Not hot rodding, crappy road conditions (snow). Got on a big hill from dead start and got into it a bit, about 3K same error came on and she went back into limp mode. Same deal, stopped, shut off, back on, was able to keep going. Was only couple miles from motel at that point, so she is on break right now.
Of course I'm 400 miles from home and nowhere near a dealer. I have a code scanner, but nothing with me to pair it with (daughter has tablet with her, ha ha).
Should I keep going or find a dealer/tow/other? If she will keep running "normally" below 3K, then I can make it home as I don't need to horse it that bad on the roads I'll be on.
Truck has had fuel filters replaced on schedule, dealer has done all service work (oil, etc). Fuel filters were done 7500 miles ago.
This trip, was on third tank of fuel. Had just put in 30 gallons at last (big) truck stop about 15 miles before this issue happened, have 50 miles on this tank. That was 30 gallons into 50 gallon tank.
Ford 6.7L Power Stroke Diesel :: Running Rough / Reduced Engine Power
I am having a problem with a 6.7. The truck has 9900 miles on it. It has a dpf delete, egr delete, Spartan tuner and a snow stage 3 kit. The truck lopes at idle but once throttle is applied it levels out but still runs a little rough. Its keeps saying its in reduce engine power no matter how many times I clear the code. If I clear the code it will come back in 2 seconds with out cranking the truck or anything. Rail pressure is telling me 31090 psi and not changing running or not. I have changed rail pressure sensor, and pressure control valve with no result. The green and violet 5 volt reference that feeds those sensors is only putting out 1.2 volts. Put a new pcm in it still the same and now has quit running totally. The codes are P0193, P0335,and P06A6.
View 14 RepliesFord 6.7L Power Stroke Diesel :: 2012 F350 - Reduced Engine Power
The truck (2012 f350 6.7 lb cc 131,600 miles) started fine. Then while i was setting up the defrost i accidentally hit the ac button. Well I then hit it again to turn off. At that point the engine stalled. Which has never happened to me before. I started it back up which took a bit longer to get it to fire. It now says "Reduced engine power" and runs kinda rough. I thought well im at the end of my fuel filters life so why not change it since i had one. Well the. The FF housing broke. After replacement FF housing and filter it will no longer start. I took the filter back off and checked to see if it was cross threaded or sucking air. I checked that twice. Still no start cranks fast and strong. Codes are
P2138 something to do with the gas pedal
P0193 fuel rail sensor A high
P06A6 voltage on circuit A is whacky (paraphrasing here)
P0532 ac pressure sensor low
Ford 6.7L Power Stroke Diesel :: Reduced Engine Power Warning
Getting reduced engine power warning with no other lights on the dash and what is probably causing it. The truck is a 14 f450 cab and chassis model. I had just had it to the dealer for this problem and the check engine light was on and the said there were two sensors going bad on the exhaust so they changed them out and sent me on my way. Well after driving the truck around all day and not one issue it had just decided to set the rep warning again but did not set off any lights...
View 7 RepliesFord 6.7L Power Stroke Diesel :: Reduced Engine Power - Warning
Reduced Engine Power warning and fuel leak? While towing our 37 Fiver uphill a couple of days ago, the warning popped up along with the CEL. Indeed, the truck did lose a tremendous amount of power. When I found a safe place to stop, the diesel smell was terrible. Further inspection revealed that fuel was dripping down the side of the engine from somewhere above the oil filter. I limped along another 15 miles to the campground and unloaded the 5<SUP>th</SUP> wheel and brought the truck in to the dealer this morning. They aren't giving many details of their findings thus far. They say that they've talked to Ford engineers and that they'll have to put a dye into the fuel to detect the origin of the leak. They suspect the high pressure fuel pump, but by the time they remove enough "stuff" to get to the pump, they can't run the engine to witness the leak. This is my first Ford in 30 years behind the wheel and my first diesel. After 8k miles on the truck.....
View 14 Replies