Guests - If You want access to member only forums on FM. You will gain access only when you Sign-in or Sign-Up on Fishing Minnesota.

It's easy - LOOK UPPER right menu.

  • Announcements

    • Rick

      Members Only Fluid Forum View   08/08/2017

      Fluid forum view allows members only to get right to the meat of this community; the topics. You can toggle between your preferred forum view just below to the left on the main forum entrance. You will see three icons. Try them out and see what you prefer.   Fluid view allows you, if you are a signed up member, to see the newest topic posts in either all forums (select none or all) or in just your favorite forums (select the ones you want to see when you come to Fishing Minnesota). It keeps and in real time with respect to Topic posts and lets YOU SELECT YOUR FAVORITE FORUMS. It can make things fun and easy. This is especially true for less experienced visitors raised on social media. If you, as a members want more specific topics, you can even select a single forum to view. Let us take a look at fluid view in action. We will then break it down and explain how it works in more detail.   The video shows the topic list and the forum filter box. As you can see, it is easy to change the topic list by changing the selected forums. This view replaces the traditional list of categories and forums.   Of course, members only can change the view to better suit your way of browsing.   You will notice a “grid” option. We have moved the grid forum theme setting into the main forum settings. This makes it an option for members only to choose. This screenshot also shows the removal of the forum breadcrumb in fluid view mode. Fluid view remembers your last forum selection so you don’t lose your place when you go back to the listing. The benefit of this feature is easy to see. It removes a potential barrier of entry for members only. It puts the spotlight on topics themselves, and not the hierarchical forum structure. You as a member will enjoy viewing many forums at once and switching between them without leaving the page. We hope that fluid view, the new functionality is an asset that you enjoy .
Sign in to follow this  
Rost

Check Engine Light

Recommended Posts

Rost

Hello..I own a 1997 Ford truck...therefore my "check engine" light comes on regularly. I usually just unhook the battery for 5 mins then hook it back up and I am set for another 10k miles before it comes on again.

Is there any reason behind this? Obviously, if there was something seriously wrong, the light would come on immediately after I hooked it back up again. I also noticed that each time it comes on, it is in wet, humid conditions. The light is yellow, which I understand is not as serious as the red "check engine".

Should I be concerned?

Share this post


Link to post
Share on other sites
Rost

Also, is there anything I can check (and possibly fix) myself before I finally decide to have them hook it up to the computer?

Share this post


Link to post
Share on other sites
IFallsRon

I had a beater Olds that the check light would go on in rainy conditions but it would go away when the car dried out.

You can buy a code checker for under $20. They typically come with diagnostic information.

Also, some parts stores, like Autozone, will run the checker for free.

Typically, the light is associated to emissions. You may need to replace the O2 senser.

Share this post


Link to post
Share on other sites
ChuckN

Likely an evac code will pop up. You can try this. Check or replace the gas cap. The rubber seal on my gas cap ('97 F150) "rolled over" if you want to call it. There was a leak in the fuel system that the computer detected.

This issue prompted an evac error code. One shop went thru the truck and inspected various vacuum lines and parts in the fuel system, around the fuel tank, and found nothing. No charges to me when the codes continued to pop up and I learned to ignore it and do the battery disconnect thing too.

It took another mechanic 2 years later to simply ask if I've checked the gas cap. Sure enough, we looked at it and the seal rolled. Simply rolled the seal over into it's proper place and problem fixed. grin.gif

Share this post


Link to post
Share on other sites
MattWtech

evap* not evac.

most ECU's adjust to the slightest of faults, my pa had a 2002 chev with a missfire on cylinder 1 due to lack of fuel, so the computer gave it more fuel, little did the computer know the injector was going bad ebcause it had a restriction. so after a long period of time, it was shooting like 120psi of fuel into that one injector. one day it needed work so i disconnected the battery, and that reset the computer, but the computer didnt know whhat thehell was going on with that injector, so it tripped a check engine light and it missed on that cylinder and couldnt relearn..long story short bought new injectors because the computer kept relearning faults. i dont think this would happen to your truck because its a bit older., just wanted to tell a cool story, but its possible because believe it or not, cars are smart grin.gif anyway just get it checked out...shouldnt cost much for somone to hook up a brik or a tech2 and read the code.

Share this post


Link to post
Share on other sites
Jeremy airjer W

The check egine light doesn't change colors. If its yellow its yellow if its red its red. It will however flash if there is a serious enough problem that could cause damage to the catalytic converter.

Without knowing what the code is there is not a whole lot we can do to help you. Give your local autoparts store a call to see if the will scan the computer for free. Some will do this. Don't buy anything from them until you consult with us first!!! grin.gif

A quick note. The computer will change the pulse width (the amount of time an injector is kept open) not fuel pressure on the chevy. Although the fuel pump is more than capable of putting out more than 120psi it is regulated at around 60psi.

Share this post


Link to post
Share on other sites
MattWtech

not if your pressure regulators plugged the injector had varnish in the seat, and coulndet get the fuel all the way out, thats why the pressure rose so high..that along with " if your chev pressure regulator didnt go out once, somone elses did twice"

Share this post


Link to post
Share on other sites
federline

>>Should I be concerned?

Here's a low tech answer: No. grin.gif

Why? You answered the question yourself - It takes 10K before it happens again. If you had a chronic problem, it would light back up soon after resetting it, as you know.

My Chevy behaves the same way. Multiple mechanics that aren't just out to make a buck have told me that "if nothing changes in the performance of the vehicle around the time when the light comes one, reset it. If it comes back on right away, then I'll look at it."

Share this post


Link to post
Share on other sites
Jeremy airjer W

Sorry dude, thats impossible! Fuel pressure is regulated before it gets to the injectors. For the most part it doesn't deviate a whole lot from 60-65psi. The only way it could get higher than than is if the return line is blocked. All eight of your injectors could have been completely blocked, the pressure would not change from 60 - 65psi.

Share this post


Link to post
Share on other sites
Jeremy airjer W

Quote:

>>Should I be concerned?

Here's a low tech answer: No.
grin.gif


Yes you should be concerned! At the very least you should know what the vehicle is trying to tell you. What if its a code for lean both banks. I would suspect a fairly significant vacumm leak wich could cause a cylinder to run excessively lean which translates into really hot wich could do some real damage. All this and you may not even "feel" that anything has changed.

If it turns out to be a $10 gas cap good deal. If it turns out that you scored a cylinder or burnt a valve all because you ignored the check engine light which would have led you to replacing the $10 worth of intake gaskets your going to kick yourself.

An engine light may seem innocent enough but can turn into a big barrel of kitty cats if ignored!!

Share this post


Link to post
Share on other sites
MattWtech

pressure regulators, these vortecs, are on the return side.. fuel pressure regulator- a device designed to limit the amount of pressure build up in a fuel delivery system..his was clogged. vacuum from the intake is supplis through an opening in the regulator cover to the regulator diaphram, the regulator spring pushes down on the diaphram , and fuel pressure from the pump pushes the diaphram upwards and opens the valve, which allows fuel to flow through this valve and RETURN to the fuel tank..

want nevermind sorry dude we are thinkin completly different things, on some returnLESS systems the regulators before the injectors, and on a return system its after, on the return side.

ok good discussion, peace

Share this post


Link to post
Share on other sites
Jeremy airjer W

Alright matt I see what your sayin however I've never seen a chevy with this problem (probably because they leak long before they would stop working blush.gif ). However I have seen plenty of F-150's and tempos with a 150PSI of fuel pressure and running like a three legged dog. A new regulator and your back in business!!

Share this post


Link to post
Share on other sites
MattWtech

haha sorry for being frustrating, i know what your talkin bout with those ol tempo's, ill try not to be so argumentative, either that or i gotta find somthing to do instead of go on FM FORUM AT WORK! laugh.gif

Share this post


Link to post
Share on other sites
Jeremy airjer W

Alright, lets stay on the subject now!!

(work is the best place to surf FM!)

Share this post


Link to post
Share on other sites
ChuckN

Evap...stand corrected..

Talking about this check engine light stuff, airjer, '96 Mazda 626 2.0L I have a check engine light pop on and when we run the code, it's an evap code, and not clear what the problem is. Any ideas?

It runs ok, but recently there has been hesitation with the engine when I throttle it up from idle, or when stop-n-go while driving.

Share this post


Link to post
Share on other sites
Jeremy airjer W

Whats the code?

I believe there is a MAF sensor in the air snorkel right after the air filter box. There are usually four tamper proof torx screws holding it in. Remove it carefully!! You may see a build up of debris on the little sensors. If so clean off with carb spray and reinstall. These are pretty common and the symptom you described is what this causes. I just had one burn me a couple of months ago. I spent a lot of time checking a lot of different stuff before the light bulb turned on.

I hope that gets you taken care of!

Share this post


Link to post
Share on other sites
ChuckN

I don't recall the exact code, just an evap error. Something I should look for on the diagnostics?

When we clear the code it lasts about 400-500 miles before the engine light comes back on. I have even had the light turn itself off periodically, but not recently.

Thanks, I will try that.

Share this post


Link to post
Share on other sites
Capt. Don*

I love these questions. Is it something to concern yourself about? "Its just for emissions" and so on. These systems are far more complex then you might realize and the light is on for a reason. Only once you know the root cause of the problem can a decision on whether or not to fix it be made. Ignore it, it causes bigger problems down the road and then its the manufactures fault for building a piece of junk that ends up with low scores in the truck advice responses. There are a few of us on here from time to time that understand this stuff, and well enough to make a living doing it day in and day out, we typically agree on the answers or the diagnostic routines needed when these questions arise. I understand that people want to help and share experiences, but think about the advice your giving. Are you really qualified to give an answer that may cause money to be spent needlessly replacing good parts, or worse causing more damage. I know that no one would intentionally steer someone down the wrong path and you really want to help, but put yourself in the questioners place, would you want a real answer from someone with knowledge in the field, or hope for the best guesses and opinions. Please don't take offense to this, just think about it.

Share this post


Link to post
Share on other sites
federline

Quote:

Quote:

>>Should I be concerned?

Here's a low tech answer: No.
grin.gif


Yes you should be concerned!


Really? 10,000 miles for most people is 8 months between lights! If this happened 5 times over 50,000 miles, and nothing else ever changed in the way it runs and drives, and it always stays off for months and months after a reset... I wouldn't get too worked up about it.

It is a person more admirable than me that has the time and money to hunt every first light trigger down. I just don't think it is cost conscious or cause for alarm in this case. My informal response was given in the context of a 10 year old truck, very sporadic light, and no other complaint of performance.

Share this post


Link to post
Share on other sites
snapjigger

2000 Explorer, just had it checked, code was lean left bank turned out to be my intake gaskets so it probably pays to get it checked out.

Share this post


Link to post
Share on other sites
Jeremy airjer W

Quote:

2000 Explorer, just had it checked, code was lean left bank turned out to be my intake gaskets so it probably pays to get it checked out.


Probably a 4.0 SOHC. Super common problem. Started seeing these real frequently a couple of winters ago. They will eventually get bad enough to trigger codes for both banks lean and will start running really bad at cold startup.

Share this post


Link to post
Share on other sites
Justfishing

The check engine light monitors emissions control. It could be something as simple as a gas cap as someone else said. I have had bad gas do trip mine. The thing to do is either buy a code reader or go to an auto parts store that will read them. It may be something simple you can do or maybe you need to take it in.

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this  



  • Posts

    • eyeguy 54
      Got up to Bowstring again at Geigers Trails End Resort. Went up to get some crappies nd found them but again could not get one to bite out deep.  One spot they were 7 feet thick ! LOL   So we chased perch and did great. No 12 inchers but a lot of dandies. Not sure if I will get back up before ice.  Crappies should be great this winter.  
    • DLD24
      Where's the best place to get bait at Vermillion?? Is Hoodoo the best access to fish big bay? The girlfriend and I are going to come up for a day trip tomorrow...Thanks for any help.
    • Cliff Wagenbach
      I believe that there is a campsite or picnic area in the bay just South of the S-Curve  located adjacent to the WMA, I believe that Green Herons and Blue Herons nest in the trees there! Cliff  
    • BulldogInTC
      Hope everyone had a great summer season of fishing and otherwise, and here's to hoping the fall season is going well.  I'm planning to get some grouse hunting in while up in a couple weeks and noticed Pine Island has a WMA on it.  Figured if I had time, I can take a quick ride out to there and have fun walking around on an island WMA.  Does anyone have any input on difficulty of beaching a boat somewhere along the shoreline on the north or south side, if even possible?   Thanks for the help and advice this year from everyone I talked to on here.  Looking like I may miss out on hard water this year and will have to put cracking that nut off until next year. 
    • papadarv
      Any thoughts, opinions on the new lighted jigs from tundra tackle. Anyone seen them in any store. I could only find on-line. https://www.tundratackleco.com/collections/frontpage
    • ANYFISH2
      I have a number of family and friends fishing the river Thursday thru Sunday this week.  No reports yet.  I will pass them along as soon as i hear.
    • Rick
      Northwestern and central Minnesota have elevated fire danger due to sparse rain, high winds and lack of humidity. This means that open burning may be restricted in certain counties. The Department of Natural Resources urges Minnesotans to use caution while burning yard waste or leaf piles outdoors and to check the burning permit website for information.  “During fall, we know that residents and property owners will be taking care of leaf and brush piles,” said Casey McCoy, DNR wildfire prevention supervisor. “Piles can smolder undetected for several weeks under the right conditions. Windy, fall days can reignite these piles.” On average, Minnesota issues approximately 43,250 burn permits annually. When weather conditions warrant it, state fire team leaders may turn burning permits on or off. To determine whether burning is allowed, Minnesotans should regularly check their county burning restrictions. Residents may need to find alternatives to burning such as composting or hauling brush to a collection site or wait until it is safer to burn. “If you do decide to burn yard waste or leaf piles, do so when there is less wind,” said Linda Gormanson, burning permit coordinator. “Instead of burning your yard waste and potentially causing a wildfire, compost or chip your yard waste or bring it to a collection site.” Burning restrictions do not apply to campfires; they are still allowed. Clear an area around the campfire, watch it continuously and make sure it is out cold to the touch before leaving. Fire danger can change quickly. Check the Minnesota Incident Command System site https://goo.gl/W686km for fire behavior conditions. For questions about burning restrictions, check the DNR page at mndnr.gov/burnrestrictions or call your local Forestry office. Discuss below - to view set the hook here.
    • ANYFISH2
      Lots of boats on the river daily here in LF now.  Select people are hitting good pods of fish and catching well.  Flows, though still Very swift, are slowing.  Fish are becoming a little more scattered, more fish are being caught away from shore and away from prominate structure. Minnows and tubes pulling most fish.  A few nice fish here and there most are falling in the 15-17 inch range. Good luck out there.
    • ANYFISH2
    • ANYFISH2
      Anyone in Camp this first season? Give us your personal report, us second hunt hunters are curious!!? First day report is 650 hunters hunted Thursday, Harvesting 37 deer. Doesnt sound to bad.  Didn't hear of any large bucks yet. Good luck to all.