I have a 1998 chevy silverado z/71 4x4. I had a water leak and had the intake manifold gaskets replaced. Ever since then, the check engine light comes on and it soots up the o2 sensors and the 4 plugs on the right bank. It may run good for a month or so and then it starts all over again.
View 1 RepliesI am about to replace the intake manifold and gaskets. I know all of that process, but first question is if there is anything i should do whilst in there. Second question; what can I do with my intake to get more power? Mainly just kind of wondering before I get my parts ordered.
View 4 RepliesI have a 1999 Ford Expedition. A couple of days ago The engine started losing coolant as soon as the engine cooled. I replaced the coolant only to lose it again when the engine cooled. I was told that it is more likely the intake manifold gaskets leaking. It seems they are right. What is the cost to repair if I take it to a mechanic?
View 1 RepliesI just bought this used truck, 2005 Chevrolet Silverado 1500 extended cab. I noticed some shaking while in idle when I got it back home. The check engine light came on a day or two later, and I recently had a diagnostic test ran on it at the local AutoZone. It came up that I had a P0135 o2 sensor (bank 1 sensor 1) malfunction and a P0101 Mass Air Flow Sensor signal performance issue. The check engine light comes and goes. I stopped by Walmart for about 10 or 15 minutes and when I got back into the truck, the issues reoccurred. For about a minute, the check engine light actually started blinking! And then went away and started running normal again. Its upper confusing. I bought some MAF cleaner to use on it tomorrow and figured that wouldn't definitely clear up my issues, but I'm still wondering if the MAF sensor is enough to warrant the CEL to blink like that?!
View 6 RepliesOur 2008 Equinox with roughly 90K miles showed the "service stabilitrack" warning on a Friday, next day light was still there now paired up with "check engine" light. My husband did something to the "stabilitrack" button which made both lights go away for a couple of days. Then both of these returned. Took the vehicle to the dealer (we always do for service, we just don't know some good mechanics in our area and so far we had not had any major issues with the vehicle).
They tell my husband it is the EGR valve that supposedly needs replacement and that the reason it got to be bad is because we failed to maintain / clean the fuel injectors so those need to be washed / cleaned / serviced too so that the whole issue is resolved. No mention about the "stabilitrack" thing at all. Due to our needs of the vehicle and our lack of cars knowledge we agreed to it without looking into it further.. Lights have been off since that and we didn't think much of it.
But then this weekend we got this "recall" letter in the mail for that very same vehicle... talking about the "check engine light" being the issue and an apparent leak of gasoline (via odor or visual leak)... Maybe these are totally unrelated ...
I checked the manual for the recommended maintenance and nowhere there is mention of regular maintenance needed for the fuel injectors.. I looked online and while there seems to be varied opinions most of them agree that is something not needed; neither it is the EGR valve replacement... so now I am really wondering! Was it all for nothing? And how is one supposed to know this. Is the "check engine" light enough of an issue to maybe think this was the right thing to do?
Looking for any pictures or directions on replacing the intake manifold on the 2004 F150, 5.4. Got all the parts with the pulgs, and ignition coils.
View 6 RepliesJust today,when replacing the UIM on a naturally aspirated 95 Pontiac Bonneville 3.8 with a Dorman upgraded type from my local auto parts, I ran into an issue. When following specified torquing sequences and specs , be very careful with the 1 long stud (#7), as it will split your new manifold there if you try to torque to 89 in/lbs. Took 1st back for replacement ,and the second new one started to split at the same place. Was using a brand new Craftsman in/lb torque wrench set correctly and following instructions exactly. I've seen a lot of excellent info on this UIM issue with the GM 3.8 ltr 1995-2004 years, but never this issue with the replacement ones. If I have to change this again will definitely go with the aluminum one.
View 1 RepliesI took my Monte in for the annual Missouri Safety Inspection. Note: I had no known problems with my 2003 Monte SS 117K Miles. After the inspection, which passed, I was informed of a variety of problems: Intake Manifold Gasket Replacement, Valve Cover Gasket w/Intake replacement, Thermostat w/Intake Removal, Fuel Injector O-Rings w/Intake Removal.
My question is should I have all of this done? It's not cheap..roughly 1000 bucks. I know very little about this and I don't want to just tell my mechanic to do it without some research. Are these common problems with Monte's of this age/mileage and just part of the cost of owning this car. I am the original owner and have avoiding costly repairs/maintenance..it's been a great car.
I have had a problem with my car idle hunting for about the past year. Last week my car threw a code and my code checker said that all 4 cylinders were misfiring. So I am still under warranty and took the car to the dealer. They said the intake manifold was leaking.
Two questions come to mind: Has to engine suffered any damage from leaking for over a year? and Do they automatically change the oil when changing out the intake manifold/gasket?
I did have an oil analysis last year (5/11) through Blackstone Labs and no antifreeze was present in the oil but the silicates were mildly high. Car is a 2005 toyota corolla with 102,xxx miles. The dealer also did the head gasket and a couple other engine gaskets 1 year ago.
I undertook this maintenance as a preventive measure, and to see if I could bump up the gas mileage a bit. After reassembly, when I try to start it up, the engine runs for 1-2 seconds, and stops, and I get a "Check Hybrid System" error. The engine will not restart. I'm trying to figure out where I screwed things up. Right now I might have to get it towed to a shop.
I bought the Prius used last month, and it's at 151K miles. I've driven it about 800 miles since I've owned it. It had been running perfectly fine, with no check engine lights or symptoms. The scheduled maintenance items were all caught up. I had spark plugs changed, engine coolant changed, transaxle fluid changed at the famous Luscious Garage several week ago, and they said the car was in good shape. They actually recommended NOT cleaning the EGR pipe/manifold/throttle body or replacing the PCV valve if there were no symptoms or check engine lights. They said not to worry about it until symptoms occur - probably to save money. Maybe I should have listened to them, but I liked the ideal of things running perfectly.
I used information from the "missing under light throttle" and other intake manifold cleaning threads and a couple pdfs on throttle body removal and intake manifold removal from the 2010 Toyota Prius Repair Manual that Mendel Leisk had attached to another thread. I generally followed the repair manual, except for not disconnecting stuff that didn't have to be disconnected, like the coolant hoses on the throttle body. That is to say, with the manual pdfs in front of me, I'm pretty sure I didn't forget to reconnect any connectors or hoses when reassembling.
A moderate amount of dry, sooty carbon material was in the EGR pipe. I cleaned that out. The port leading to the EGR valve assembly was also filled with that dry soot, and I cleaned that out with a pipe cleaner, used dry, since I didn't want to create a sticky clog in the valve. I stuck a vacuum cleaner to that port afterwards, in case I had pushed soot back towards the valve with the pipe cleaner.
I have taken my car into service twice because of the check engine light being on. They fix it and say it has something to do with the intake. It is now on for a third time. Obviously they are not fixing the problem. BTW, I have done no modifications to my car.
View 7 Repliesrecently my check engine light came on, I had the codes read, the tech said that i had air getting into my fuel system, i replaced my gas cap. my light is still on, he also mentioned some kind of emissions sylinoid may need replaced, or a vent valve idk.
I recently drove up to Sandusky OH for the weekend, my light didnt come on til i refuled with gas containing 15% enthenol. the engine is running fine, no miss, has good power. I ran it down to a 1/4 of a tank and filled back up and the light is still on.
I have a 2003 silverado 1500 4x4. The check engine was on along with the abs light. I went to advance and let them tell me what was going on. I don't know the specific code but it said the passenger front abs speed sensor was bad so I replaced it along with new brakes, rotors and calipers. Now the abs, check engine and red brake light is on. There is also a message telling me that the brakes need serviced. I went back to advance and let them tell me once again why those lights were on and it was still the passenger speed sensor bad. What could be going on with it? Before it was replaced the red light never came on but now it is.
View 10 RepliesGot a check engine light, whoever scanned it said something about a secondary air intake? Upon searching, I found a post about a bad MAF.
View 2 RepliesSo last night, I put my APR stage 1 intake on my 2011 GTI. Install went smoothly, didnt even touch the MAF sensor. Drove fine that night with no cels and drove home approximately 15 miles.
Today, after driving an additional 15 miles I turned off my engine. Upone restarting, the engine starts but idles at 0 then shuts off. Tried restarting a couple times to no avail. Then took out my key, gave it a few seconds, tried again and the engine starts but with a check engine light,
Shut it down, gave it a few more seconds and restarted the engine and the check engine light was gone.
WTF is going on??? I am super worried as I only have 850 miles on it and am scared I got a lemon or something. Is this normal?
EDIT: Could i have ruined my engine in any way?
I installed an Injen cold air intake and 2 days later, the check engine light went on. I had it reset at the dealer and next day, again. Am I stuck with this or is there a way to keep it off, other than putting back the original air box?
View 18 Replies1996 Silverado 350 engine. When I turn ignition key on, all system check lights come on as they should except "check engine soon". If I connect code reader the light comes on and will come on the next time ignition is turned on but only one time. The second time you try it, it does not. What would cause this?
View 3 RepliesOk so I just replaced my mass air flow sensor about a week ago. My check engine light just came back on and when I scanned it it said mass air flow sensor. What could be causing this to happen again? The codes are P0102, P0440, P0440.
View 4 RepliesFirst of all, its 5.7L V8, it's been very well maintained, I've had my fair share of problems but nothing that has been that serious, except for the "check engine" light for the O2 sensor.
For about the last 4 months i've had the problem of the truck sometimes jerking while on the road. Once i started to speed up it seemed to not speed up which when it did, it jerked a bit. That was in the beginning.
AS OF NOW, the jerking has stopped but every now and then when i pull out of the garage and start to turn onto road it turns off, but all the status lights are left on. & when turn the key to turn it off and restart it starts again every time. Ive noticed that i was better off with the "check engine" light on then now because every time it is off it has these problems.
Also, when I barely start to tap the brake, again not all the time, sound skips on the radio. & this always happens when i tap on the brake & this happens more frequently when the "check engine" light is off.
Leaking intake manifold gaskets on General Motors 3.1L V6 engines? Mine is a 1998 Grand Am with low milage (40K) and I have been told I need to spend $900 to replace the intake manifold gasket because it is leaking antifreeze into the engine oil.
View 8 RepliesDriving while in 4x4 HI up a hill the truck started to slip. I stopped, shifted to neutral, and engaged 4x4 Low. I shifted back to drive and started moving up the hill. The engine started to lose power and the "Service Engine Soon" light began to blink. I put the truck in park. As I let it run a little bit, the engine started to shake as if something was very imbalanced. I went to check under the hood, and confirmed that it was shaking quite noticeably. There was no grinding or clattering of any kind though.
I turned the truck off for a bit, and then restarted. There was no light or shaking upon starting up; but as soon as I put it in gear and started driving I could tell it was losing power, the light came back on, and the shaking ensued. This occurred in 2wd, and both 4wd lo and hi. I parked it at a neighbors place and there it sits for now.
I plan to try and get the codes read. My other vehicles can't make it through the snow we have right now, but it is suppose to get warm later today and might melt enough for me to get one out. I also live out in the country, so the nearest auto parts place is about 20 miles. Same with a dealership service shop. I'm hoping I can buy and return a code reader from an auto parts store to assess if this is something I can diagnose myself or not.
It is the 6.0l gas engine with the 4sp automatic transmission. The truck also has about 107,000 miles.