Chevrolet - Tahoe :: 2004 - Gas Mileage Dropping On V8
Sep 7, 2013
I have a 2004 Chevrolet Tahoe 2WD with the 5.3L V8. Tahoe has 134K. At about 125K miles, I replaced air filter with a K&N, new OEM spark plugs and spark plug wires. The Tahoe has been running great and was getting normal mpg until recently. 15mpg in town and 17mpg on the road is what I normally get. The last 3 fill ups my mpg has been below 13.5mpg. Car still runs great but at 13mpg it's starting to hurt a little financially. Weather here in NC has been normal, my driving conditions or habits have not changed, etc. What could be causing my mpg to drop by so much while the suv still rides smooth and straight?
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I have noticed over the past few months that my gas mileage is dropping (from about 29 to 24) on the highway and I seem to have lost some power. I know the car is getting older, but where do you think I can get some of it back? The plugs are only 20K old and the air filter is new.
It is a 2004 1.8t with 109k on it.
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2004 Tahoe that started with no heat in rear. Checked all hoses and they get hot all the way to back. Replaced rear blend door actuator and worked for a little while. Tonight, took a 90 minute trip and it blew ice cold until suddenly it started blowing heat 45 minutes into trip but then went back to cold after about 10 minutes. Actuator is electric not vacuum. Could it be in the controls where you adjust the temp?
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I have a 2004 Chevy Tahoe , the doors keep locking and unlocking. The abs and brake lights come on and stay on. When the doors act up the engine light comes on . The best is it'll stall out. Doesn't happen every time , but 99%
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2004 Chevrolet Tahoe that has the dual climate control features. Some days the A/C blows cold on one side and hot on the other with it set on the coldest setting. Another day it blows cold on both. Then you guessed it a few days later it goes back to blowing hot on one side and cold on the other.
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I have an '04 chevy tahoe, only 70k. Very recently the front end of the car has started to shutter while driving. This happens when I am going generally above 45mph- more so going up a hill. It feels a little bit like I am driving over unevenness/ripples in the road- even when it's smooth flat pavement. When I take my foot off the accelerator and just coast the vibration stops. I got new tires put on front so it is not a wheel balance issue. The car does not pull left or right either like out of alignment. And the engine rmp's do not fluctuate/strain when the shuttering starts.
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I have a 2004 Z71 Chevy Tahoe with 192,000 miles that runs great. The issue I have though is the electrical system is going haywire (no pun intended). The front A/C and heater stopped responding to the level knob, therefore doesn’t blow, the dash lights will periodically dim and go off, the horn doesn't work when I want it to, and the A/C would sometimes blow warm air when it did work. The A/C used to work on all levels of the dial, and then over time, level by level, they stopped working; however, the back blower works well on both A/C and heater, which is operated by the overhead control knob. I open the front vents to allow outside air in, rather than recirculated air, and the air coming out of the vents is A/C air, but it only blows when I'm driving of course.
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I drive a 2004 chevy Tahoe and have had this problem for about 8 months. It started out very faint and occasional, but has now escalated to loud and consistent. So it ONLY happens when turning right. I've tried to replicate it when turning left and had no success. It happens when I am turning fairly hard at a decent speed. ex. Pulling into my driveway. I've already checked the wheel bearings and Ball joints.
Another thing is that the ABS light is on sometimes when i start the car and comes on every time i turn the steering wheel all the way to the right. It also has a problem where it will shake almost uncontrollably when driving at 65+MPH after hitting a bump or sometimes just randomly on a smooth surface. We just got new tires and balanced them. It did the same with the previous set we had. I know I'm asking for a lot, but where to start?
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I just bought a 2010 salvage Prius. I have another 2010 I have been driving for 3 years so I am pretty used to the mileage I can expect under different conditions.
When the car is totally warm and I measure the mileage for 15 miles or so I get normal readings of mpg. But with a lot of 2-3 mile trips during the week I am getting about 10mpg less than usual compared to my other 2010.
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Gas mileage as stated by Suburu for the 2015 Outback (2.5 engine) is 25-33 with a combined of 28. Mine has never attained that and it has been steadily dropping. Now it is displays as 19 mpg. It is new and has just under 500 miles on it, and I read that the break-in is 1000 miles. That being said, shouldn't I be seeing better MPG than that?
BTW - I am hoping that I am just not being fair (to the car and to Suburu) and that I'll be up in the advertised MPG's soon after I hit 1000 miles.
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Have had my 2011 Prius all of 4 weeks. Followed PC for months before the purchase, practice pulse/glide regularly and have really change driving habits to increase MPG. First tank was 51 MPG, than 48, 46 and now 45. each one was 75% city driving, 25% freeway.
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With the colder weather in the NE, I am experiencing lower mpg with the ES 300h. We have had several cold days here, and my mpg seems to be going down. My driving habits have not changed.
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I have 60k on a 2010 Prius III. my mileage is slowing dropping, i am thinking about installing new plugs.?
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I have a 2004 Chevy Tahoe with the 4.8L V8. My A/C is blowing hot on the drivers side and cold on passenger side. There is only one controller, not two. What the problem could be...and I'm scared to ask...how much it may cost to fix? It has happened only one other time and that was a year ago, and it has worked fine since then until today.
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I have a 99 Chevy Tahoe that the transmission keeps going out in. I've replaced the torque converter, cooler lines, computer. I've even added an additional cooler on the truck and it keeps burning three the transmissions.
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My brother's truck is a 1997 , 5.7 L gas engine, fuel injected. 100k+ miles.
New plugs, wires, new rotor, coolant temp sensor & air filter & recent battery.
Started a few times after the new air filter & some dry gas & fuel injector cleaner & that was the last time it started.
Turns over but will not run! He needs this truck to tow a trailer to R/C boat shows (he makes parts for R/C racing boats).
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I have a 2001 Chevy Tahoe. My ABS/Brake lights have been on for awhile now...they go off intermittently, but I think my ABS module is bad. This is a very expensive part.
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I have a 97 Tahoe that I love! The problem is that, every once in awhile, it simply won't start. Won't start, won't crank, won't do anything. I turn the key and nothing happens, similar to having the truck in gear and trying to start it. The REALLY frustrating thing is, when I take it to the mechanic, they can never recreate the problem. This last time, the mechanic had it for a couple of weeks, couldn't ever get it to not start. I had it for a week, and it stranded me an hour and a half from home.
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My wife has a 2004 Chevrolet Tahoe with abut 100K. She did something and doesn't know what but now the car beeps anytime you put it in reverse. No big deal, it's just annoying. I've checked the book and can't find out to disable. How to disable this on a tahoe or know what to look for in the owner's manual.
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What is the embarrassing clickety sound my 2001 Tahoe makes when I accelerate with the AC on?
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98 Tahoe ac giving me warm air once again. 5 weeks ago had it in the garage. they found a leaking schrader valve and re-charged and added dye. checked it and didn't see anymore leaks. they said keep an eye on it and if it stops cooling bring it back. well.........it's going back! it's blowing warm air even though I hear the compressor kick on. what else could be giving me problems? of course i'll take it back but i'm just wondering if a switch failed this time or what the heck is happening. I was surprised to hear the compressor running with warm air.
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