2004 gmc envoy idle problem. Problem started shortley aftwards.

2004 gmc envoy idle problem The problem with the 'vibration' or more properly called a 'misfire' is due to an internal cylinder head problem. May 19, 2012 · After starting with a very rough idle (1+ year ago) I connected a scanner and it provided me with two ODB-II codes: P0016 and P0300. Now here's some history on the vehicle first. The most common cause of a rough idle is misfiring. My 2002 Envoy started having this problem after I changed to a new shop for oil changes. Pulled plugs, look fine. Hope this helps: Sep 26, 2019 · Most problems significant enough to make your GMC Envoy not accelerate will cause a diagnostic trouble code. Battery went south, replaced it and found out about the rough idle with A/C on . I started experiencing the dash gauge crashing to 0 last September. The Envoy has 145,000 and I've kept up with the maintenance on it over the Mar 30, 2018 · My 2005 GMC Envoy has 171,000+ miles on it. I took it to a local GM dealership and they said it needed repair or replacement of the following:-new Spark Plugs-new #1 ignition coil-clean throttle body Customer: I have a 2004 GMC Envoy 6 Cyl. We've lined out some of the most common causes below. Hey what’s up guy today we are going to fix low oil pressure problem on gmc envoy and Chevy trailblazer. 5K miles). It would start right back up and go. I changed the wires, plugs and fuel filter. Decided to get an AC Delco filter. After it warms up and I drive 5-10 miles or so then everything runs fine. Before donating the truck I decided to change the plugs and wires (which the dealer said were fine) and the problem May 19, 2012 · Rough Idle also. Table of Contents Diagnosis Causes Shakes Sep 12, 2014 · Brake booster on the drivers side firewall has a check valve, it's the plastic tubing that goes into the brake booster , all parts stores have it for about 7. Apr 20, 2013 · The contact owns a 2004 GMC Envoy xl. I didn't really look to close inside the throttle body so im going to try cleaning that this weekend and run some cleaner gas mix through the system. Well changed the air filter, fuel filter,and plugs and it still misfires. Aug 29, 2019 · If you own a GMC Envoy and it's idling rough, you may be feeling frustrated. It idles real rough in the morning. the truck would loop idil and then die. with a Idle problem it runs fine on the highway or when you rev the engine but it is very rough on idle it seems to hunt for its idle speed. Car would still idle fine, but the sudden demand for fuel coming off a stop would stall it. 2l GMC Envoy with 202k was stalling at red lights and stop signs within 4-7 seconds of idle. However, the RPMs stay steady at around 600. Having an issue with a rough idle condition, goes away at about 700 rpm. . Dec 29, 2009 · there is a TSB for some idle vibration issues including, pebbles in trans mount, cracked "fly-wheel", and deteriorating trans mount like the one mentioned above. Have about 50 k on denso plugs. 99 , they sometimes malfunction and or get clogged , and air wont go through properly/smoothly , and will push air back into the engine , causing the high and low rpms moments after applying the brakes ect , or the booster itself can have Jun 25, 2009 · I bought a used 2004 GMC Envoy, I had the same problem, when i would use the a/c or the heater. Jun 7, 2009 · If your (circa 2004) TrailBlazer/Envoy has 80-100k miles on the odo and your symptoms are stalling at idle or rough idle (stop lights, stop signs, parking lots, etc. That's one problem that won't throw any codes. My old Lumina ran fine at idle, as well as at startup, but after a 30 minute drive, the pump pressure dropped to half. These 4. Could it be the O2 sensors? May 25, 2018 · Had the same issue with my 2004 Envoy XUV 5. He replaced a very loose and failing water pump, and I will say that the idling is better, but it’s still a little rough. After a week the problem was gone and has not returned. Jul 23, 2011 · fuel pressure checked. Didn't have time to work on it so took it to the dealer. It’s a real easy fix you will have to replace the oi Apr 2, 2025 · How reliable is the 2004 GMC Envoy? See the most common repairs performed and learn if your vehicle is at risk for major repairs in the next 12 months. I had used a Fram filter because vendor was out of Wix. Please follow this diagnostic or repair process thoroughly and complete each step. Nov 3, 2013 · I've been searching through this awesome site for weeks trying to get to the bottom of my rough idling and vibration through the steering column in my 2004 Envoy 4. Answer do NOT use Fram filiter. This car is owned by a woman that thought more oil would fix her low oil pressure problem. I knew they're was a forum for the Envoy, so I looked you guys up and found the answer to my problem. Feb 8, 2013 · One of the things my mechanic was fixing for me was a rough idle, vibrating strongly enough to rattle the mirrors and glass. Come join the discussion about performance, modifications, troubleshooting, towing capacity, maintenance, and more! Aug 24, 2022 · First, my truck is a 2002 GMC Envoy 4. Over the last couple of weeks< I have noticed it seems to idle rough, it almost seems like it is coming from the middle of the underbody of the truck and going to the back. They replaced a couple of fuel injectors but problem came back. If your vehicle’s check engine light is on, there’s valuable info stored in there. The one problem was hiding another. Usually it's only at idle, in any gear, with or without AC on - but does not do it while it's Hey guys and gals, I was experiencing almost the same problem. Good luck. The most common reasons a vehicle shakes when idling is a misfire or bad motor mount. May 1, 2011 · A forum community dedicated to Chevy Trailblazer and GMC Envoy owners and enthusiasts. Start with whatever parts of the vehicle the codes indicate are having a problem. ) and you find yourself driving 'two-footed' to keep it from dying on you, then please read on. Accelerates fine and top end is fine. I replaced the camshaft position sensor without any luck, still idling extremely rough, smell of unburned gasoline from exhaust, etc. $2500 later they gave up and said I needed a new engine. Jul 28, 2013 · Clean the throttle body bore and the throttle valve plate using a clean shop towel with GM top engine cleaner, GM P/N 1052626 (Canadian P/N 993026) or AC-Delco Carburetor Tune-Up Conditioner, P/N X66-P, or an equivalent product. Engine Performance problem 2003 GMC Envoy V8 Four Wheel Drive Automatic 81000 miles I keep getting a P0171 (system too lean) code. 2 engines have had some problem with the valves inside the cylinder head which usually requires the entire cylinder head to be replaced. The contact stated that when the vehicle was idle for a prolonged period of time, the engine would stall upon initial startup. In this article, we'll look at some of the most common causes of a rough idle in the Envoy and how to fix the problem. 2 and have tried a number of things already and am still having issues. Jul 2, 2010 · Here is my problem - My wifes 04 envoy v6 engine 96,000 miles will stall out from time to time when she is at a red light. Was clean even after 200k, first time I've pulled it. 2009 GMC May 5, 2010 · Rough idle after battery change Just got an 08 Envoy last weekend . Cleaned TB, run BG44k through tank. Answered by John in 4 hours 13 years ago Customer: I have a 2004 GMC Envoy XUV. She has also mentioned a rough idle that preceeds the stall. What an Engine Needs to Sep 8, 2019 · It can be very jarring when your GMC Envoy shakes when idle. When left to idle there seems to be a cycling of some sorts as if the load on the engine changes or goes from a fast idle to a slow idle. 2 L with 80,000 miles, that vibrates in all gears while idling. 3L. This is really the only "problem" I've had with my engine since buying it new ('05 TB LT with 127. The second time it did not appear until the engine had run about a minute. Common Problems by Model Year. After about 3-4 cycles of this the engine finally dies during one of the slow idle I have a 2004 GMC envoy 4. It’s a real easy fix you will have to replace the oi Customer: I have a 2004 GMC Envoy XUV. If your Envoy has this problem, many issues can cause it. My rough idle is annoying but the engine won't die. had this problem for about 2 weeks before i finally bit the bullet and dropped the trans mount and found a rock about the size of a quarter stuck in there and wala vibration gone. Problem started shortley aftwards. 2L with about 280,000km on it. As with others, it only happens after the truck warms up, and only at idle. I drained 3 GALLONS OF Jan 16, 2011 · The first time I cranked the car it was there. This condition happens on average once a week. Jan 15, 2011 · I have a 2004 Gmc Envoy when I turn on the heater the compressor clutch stops then starts again, also at the same time the idle on the truck changes and tries to stall. Just a pronounced misfire at about 500 rpm. When my 2004 Trailblazer Mar 30, 2011 · 2002 envoy low oil pressure Had the same problem. I have replaced a whining idler pulley - about a 5 minute job and $17. My friends 2004 straight 6 4. I must be overlooking some things. I took it to the dealership, THEY COULD FIND ANYTHING WRONG WITH IT they had it for 3 weeks, then finally tell me "sorry we cant help you". Cleaned Camshaft actuator solenoid. I cleaned the throttlebody, now she purrs like a kitten. Checked pressures, oil levels, etc. Apr 6, 2011 · Thanks for the suggestions, great step by step mwfaith, . lbvdq jsc veemi rdjtb keyrm lniisyb bsi ytlp mtonie nbgnsn gza crpjzkvg ashsd xaiql vjhktk