Question about Cars & Trucks

Open Question

I have a 2001 saturn l300 just had one of the two flex pipes replaced yesterday and the noise stopped and everything was great...today however my check engine light came on so I brought it in and it said multiple misfires????? Wtf does this mean the guy said it cud be the plugs n cables or fuel pump or injector and that I shud buy cheapest first until problem stops...not best advice... I recently replaced the egr valve as well and that's y I had to replace flex pipe...the car runs good but stopping at a light it will vibrate not shake... besides the cat underneath what else is there filter wise? I wanna say the guy said fuel filter but wud it be underneath next to the cat? I don't think so? Someone heeeellllpp meee

Posted by Anonymous on

Ad

3 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
  • 1857 Answers

SOURCE: I got a 99 tahoe 5.7 vortec with multiple misfires

this is one of those situations that a professional diag would of saved you alot of money. Its possible you just got bad gas and your injectors are partially clogged. An 02 sensor would not give multible misfires. EGR would only misfire at idle if stuck partially open since its suppose to be open cruising. Fuel filter would give you a starvation issue but if the misfires happens at idle then the filter most likley is ok.
Data from a professional data scanner will store the conditions when the misfire occurs. Also for a chevy each cylinder will have a misfire counter and one can see the misfire happening as it happens. If its idling and misfiring and gets better as you rev it up most likely you have clogged injectors or a intake vacuum leak. You can test for a intake leak by spraying the intake area with water(idle will faulter if it draws water in), or use brake cleaner (idle will raise when fluid gets drawn in).

If no leaks are found I would do an injection service or at least add two bottles of techron to a full tank, drve till half a tank then top off again.

Also if the catalytic converter is clogged the backpressure could cause all sorts of misfire issues. Removing the two upfront 02 sensors and driving will indicate the exhaust is clogged or not. We put a pressure sensor in place of the 02 sensor. If the pressure is above 5psi this would indicate some blockage. It should be below 3psi at 2000 rpm. Also if you have K/N filter the oil from it will coat the maf sensor wires in time,, (always). You can remove the sensor and spray the wires with brake cleaner to clean. DO NOT touch them. They can be brittle. Look at the wires for color. They should be shiny silver. If its coated the PCM will not see the air volume or accurately see the air temperature. Without this information the PCM will not add enough fuel which will create a misfire.

Posted on Jul 07, 2010

Ad
  • 32 Answers

SOURCE: Obd test says multiple misfires for my saturn l300

Sounds like its not firing on all cylinders. Try getting plugs replaced or have somebody put a timing light on it to see the cylinders is firing correctly!

Posted on Nov 01, 2012

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

How can I bypass the OEM internal engine oil cooler with an external aftermarket oil cooler on a 2001 Saturn L300 3.0LV6?


Can you pipe the hot oil out to the after-market cooler, let it work, and pipe the cooled oil back in? You're not giving the internal cooler any "work" to do, but who cares, since the goal is to cool the oil.

Oct 24, 2014 | Cars & Trucks

1 Answer

Why does my saturn L300 keep loosing engine coolant ? I have to add some every 3 days.


I would have the water pump checked, if that is not it, is water coming out of the tail pipe? If water is coming out of the tail pipe, you may have a head gasket problem. Something else to check is the oil. If it is discolored, then you do have a head gasket problem or worse yet, a cracked head.

Apr 18, 2014 | Saturn Cars & Trucks

1 Answer

My ford freestar keeps cutting off when starting.


It sounds like what mine does. After it dries out it will run again. Idols at over 2000 in nuetral, when nuetral idol goes back to normal everything should work again.Pretty sure its in the PCM. There is a safety bulletin out on it, not a recall. I blow heat on mine for a couple of days and it will do fine for a while. Did it today and hasn't rained for more than a week?

Dec 07, 2012 | 2005 Ford Freestar

1 Answer

Obd test says multiple misfires for my saturn l300 2001.. erg and flex pipe underneath just replaced...drove good for one day...still drives good its when I stop at lights it vibrates...? Maybe fuel pump...


Sounds like its not firing on all cylinders. Try getting plugs replaced or have somebody put a timing light on it to see the cylinders is firing correctly!

Nov 01, 2012 | Cars & Trucks

1 Answer

2001 Saturn L300 security issue


I had the problem and when i took it in they wanted a ridiculous amount of money to fix it.. It is the security system failing. i did a ton of research and found a module that u can install yourself that will bypass it and allow the car to start every time.. i did mine like 5 years ago and i havent had an issue since.. you car is on the list year make and model for having this problem i guess its really common in GM vehicles .. Check out this website they have great customer service and if for some reason it does not work they will refund you 100% of your money!! I hope this helps ya i know how frustrating it is.
http://vatspasslockpasskeysecurityhelp.com/ Do It Yourself GM Security bypass

Apr 04, 2017 | 2001 Saturn L-Series

1 Answer

2001 Saturn L300 transmission shifter does not shift when car is started, foot on brake. It remains in park. Can't shift transmission into grear. a clicking noise is heard


Almost all newer cars have a safety that won't allow you to shift without a foot on the brake. These are either cable or electric solenoid activated. They fail, so check your owners manual, as it will have the procedure to get it to shift, untill you can get it fixed correctly.

Jul 05, 2011 | 2006 Saturn L300

2 Answers

Were are the 02 senors located on a 2001 saturn L100


This is a 4 cylinder right? Open the hood and look down between the engine and firewall, this is behind the engine. You will see the exhaust pipe, follow the exhaust pipe up to where it is bolted to the exhaust manifold. You will see the upstream O2 sensor screwed in there, more or less horizontally with wire connector pointed at driver side of car. Now get under the car and find the catalytic converter in the exhaust pipe, a big bulbous thing, the downstream O2 sensor will be after the converter, but before the muffler and will also have an electrical connection.

Aug 03, 2010 | 2001 Saturn L-Series

1 Answer

I need wiring diagram for 2001 Saturn L300, I also fuel sys dgrm


Mine was doing same, but also revving up weird. I replaced the Crankshaft position sensor and it didnt work. Today I changed the Engine coolant temp sensor and it fixed my problem. Hope this helps!!

Dec 20, 2009 | 2001 Saturn L-Series

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

17 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts

yadayada
yadayada

Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Randy Ohler

Level 3 Expert

14585 Answers

Are you a Car and Truck Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...