6 years later I come across this really good video. After having my spark plugs replaced twice in a week and cables and then ignition coil, all fuel injectors and thermostat (another issue) the truck is still running rough. I am going to test this myself because it seems my local mechanics are not very good
Thanks for the lesson. Spraying brake kleen on the vacuum lines of a customer car may not be the best idea but for my stuff sure. This helped me gain understanding of the theory so thank you
Engine that idling up and down is a bad idle control valve that was in my case put a new idle control valve and it's not idling up and down anymore.. but it can be caused by other issues too.
Very detailed , good stuff .. iv got a vq30dd nissan and its idle is more like vibrating the motor during low revs , as revs pickup it goes away but still feels sluggish. Floored the car and symptoms went away . Now after doing an intake cleaner test (spray past maf ) cars GDI and is reccomended to clean valves. Now problem is back , floored it againt to see if that helps but its still running rough down low , almost like its down a cylinder . Not too sure where to go from here . Iv got general knowledge mechanically but im left scratchn my head.
Tyson Cross ~ utilize a vacuum gauge by taping in to vacuum source. Your watching that gauge for rapid fluctuation which is an indication that you have a valve train issue that could be causing that symptom. Give that a try ~ hope that helps ! ~Frank
Get a Actron CP9690 code tester. It checks live, record, graphing, emissions readiness test, oxygen sensor test, transmission codes, ABS, SRS, and MORE! Get a USB cable to update it. Get 4 aaa batteries for under the rear cover. EBAY has it.
Hey Excellent and concise Video. I have a 2009 Chevy Aveo with a code P0171 system lean Bank 1.. The car also have poor acceleration and bucking at Highway speed.. Please any input would be greatly appreciated.. And thanks before hand.
I am a disabled vet with a 2006 scion xa set up for my disability . Right now the cigarette lighter does not work . If I plug in something to it the radio goes off but when I unplug it the radio comes back and it does not lose stations. I replaced the fuse and the cigarette lighter and have tried different things in the port to see if its just 1 or 2 causing the problem I am a backyard mechanix as I was taught that in the NAVY . So I am lost also money is tight so I hope to fix it myself
I think you could also buy a pipe tobacco cigar, you smoke it and then you exhale the air on one of the vacuum lines preferably near on the engine cabin air filter and with some luck you may find it on the first try. Ps Smoking kills but one smoke has never kill anyone.
In my country spark plugs and dirty throttle with dirty MAF sensor usually causes problems like that. And believe it or not but had never seen a smoke machine around here by myself)))
Hi...i have a Mitsubishi lancer 1998(Carburetor). The problem is that in the morning it has a slow start and i have to press my accelerator for it to start...moreover, it hesitates and have a rough idle...sometimes if i accelerate to the max, there is black smoke coming out from the exhaust...can you help please.
I have a 2007 Chevy Silverado classic 4.3L. When it's in drive at a stop light the engine starts to vibrate. When it's warmed up, and 15-20 minutes of driving, the symptoms go away. I've cleaned the throttle body, and that helped very little. The transmission shifts perfect, no problem there. Any thoughts as to what this might be?? Thank you, love the vids!
james Campbell ...as long as the CEL is off...make sure you check those eng mounts..otherwise make sure all fuel trims are good to go..reach out at the garage if I can help further...thanks for stopping by.
Jose Muralles ..absolutely. Here is a great video detailing that as well what that engine will really tell you th-cam.com/video/dQPY31yrUlc/w-d-xo.html Additionally..best to get a pre purchase inspection before you buy. Protect your wallet! Thanks for stopping by ~~Frank.
Hi. I recently encountered a problem with my car . My car is a 2003 peugot 1.4 manual trasmission . The problem comes as you put the car on first gear run a little bit then you press the clutch .... If you release the cluth without shifting to a higher gear itll jerk .... It happens on every gear but on the heavier gears it gives you a harder reaction. What dou think it could be...
Thanks for the vid! Can a bad pcv valve cause overheating? My cars been overheating only when sitting idle for a few minutes and if you start driving it cools down. I figured they were seperate issues but just curious as to if that could cause it. Lucky me had to order the valve so I'm still waiting to replace it.
I'm having a idle problem.its a4.3 vortex it seems to run fine when first cranked but once I've drove it about 10 or 15 mins it idles really bad almost shutting off I've replaced the distributor and button checked all the vacuum lines and the mass air flow sensor there all fine what could this be??
Same exact problem on my 5.7. So far I've replaced the IAC and MAP to no avail. Gonna try looking for air leaks when the rain stops. Did you find the issue?
Edward Ryback ~~a direct link (light displayed on dash with an engine symbol) warning you of a power train management fault~~if it is on~~needs attention. Great question & my apologies for not being clear on this .~Frank
Obvious vacuum leak in the intake manifold gasket (s) somewhere. Of course, your typical mechanic will want to replace plugs, wires, injectors etc because there's money in that.
Dick B. ~or they may not want to introduce a new symptom & a comeback by reinstalling aged parts that have to be removed as a part of the repair procedure.
common sense... check hoses for any that are cracked or collapsed or damaged in some way .... and replace them. A 'mobile mechanic' if available, can do it better and faster than you and it is likely a 1-time process.
6 years later I come across this really good video. After having my spark plugs replaced twice in a week and cables and then ignition coil, all fuel injectors and thermostat (another issue) the truck is still running rough. I am going to test this myself because it seems my local mechanics are not very good
Thanks for the lesson. Spraying brake kleen on the vacuum lines of a customer car may not be the best idea but for my stuff sure. This helped me gain understanding of the theory so thank you
great display of workmanship and knowledge, although irrelevant to my issue, i learned a lot :) Thanks for a great lesson
Thanks Luke
Fun to watch you in action Frank . Cheers
New Level Auto ~ right on ~ thanks for stopping by
Engine that idling up and down
is a bad idle control valve that was in my case put a new idle control valve and it's not idling up and down anymore.. but it can be caused by other issues too.
Very detailed , good stuff .. iv got a vq30dd nissan and its idle is more like vibrating the motor during low revs , as revs pickup it goes away but still feels sluggish. Floored the car and symptoms went away . Now after doing an intake cleaner test (spray past maf ) cars GDI and is reccomended to clean valves. Now problem is back , floored it againt to see if that helps but its still running rough down low , almost like its down a cylinder . Not too sure where to go from here . Iv got general knowledge mechanically but im left scratchn my head.
Tyson Cross ~ utilize a vacuum gauge by taping in to vacuum source. Your watching that gauge for rapid fluctuation which is an indication that you have a valve train issue that could be causing that symptom. Give that a try ~ hope that helps ! ~Frank
10/10 well presented. Well made. Good job, thank you.
Jesse Turner ~ thanks for stopping by !
Thanks for this video on diagnosing rough idle.
Glad it helped !
@@Desertcarcare It really did.
Get a Actron CP9690 code tester. It checks live, record, graphing, emissions readiness test, oxygen sensor test, transmission codes, ABS, SRS, and MORE! Get a USB cable to update it. Get 4 aaa batteries for under the rear cover. EBAY has it.
Hey man. Very very good video. Professional and knowledgeable.
Antonio Aguilar Bahena ~~appreciate you brother ~join us every Wed for our Car Talk Show at 4pm MST Listen Live ➡️ bit.ly/2Eqp4Ki
Hey Excellent and concise Video. I have a 2009 Chevy Aveo with a code P0171 system lean Bank 1.. The car also have poor acceleration and bucking at Highway speed.. Please any input would be greatly appreciated.. And thanks before hand.
I am a disabled vet with a 2006 scion xa set up for my disability . Right now the cigarette lighter does not work . If I plug in something to it the radio goes off but when I unplug it the radio comes back and it does not lose stations. I replaced the fuse and the cigarette lighter and have tried different things in the port to see if its just 1 or 2 causing the problem I am a backyard mechanix as I was taught that in the NAVY . So I am lost also money is tight so I hope to fix it myself
Kenny Hickerson ~~call me directly at the Garage & I will get you through it ~~a big hugs thank you for your service~~ I was USS Peoria LST Navy 🤜🏼🤜🏼
I made a awesome smoke machine for $5 which is by far the best method of locating vacuum leaks...
roadstar499 how’d you make it?
I think you could also buy a pipe tobacco cigar, you smoke it and then you exhale the air on one of the vacuum lines preferably near on the engine cabin air filter and with some luck you may find it on the first try. Ps Smoking kills but one smoke has never kill anyone.
Pedro Suarez ~ seems this done years ago ~ if it works ~ it works !
The combustion might leave residue like you'd find inside of a pipe or in the filter of a cig
cigarette...or the goop in your lungs.
I just go to said thanks for teaching us personally I appreciate it for everything what are you doing
Carlos Linarez ~ thank you. Join us for more recent updates here www.wrenchnation.tv/ ~
In my country spark plugs and dirty throttle with dirty MAF sensor usually causes problems like that. And believe it or not but had never seen a smoke machine around here by myself)))
KIevMan ..Lol ..indeed my friend !
Yes dirty or bad Maf sensor causes all kind of issues..
if there is no leak as you have just found, does stale engine oil can cause the same engine sound, i mean the sound up and down during idle.
Hi...i have a Mitsubishi lancer 1998(Carburetor). The problem is that in the morning it has a slow start and i have to press my accelerator for it to start...moreover, it hesitates and have a rough idle...sometimes if i accelerate to the max, there is black smoke coming out from the exhaust...can you help please.
I have a 2007 Chevy Silverado classic 4.3L. When it's in drive at a stop light the engine starts to vibrate. When it's warmed up, and 15-20 minutes of driving, the symptoms go away. I've cleaned the throttle body, and that helped very little. The transmission shifts perfect, no problem there. Any thoughts as to what this might be?? Thank you, love the vids!
james Campbell ...as long as the CEL is off...make sure you check those eng mounts..otherwise make sure all fuel trims are good to go..reach out at the garage if I can help further...thanks for stopping by.
Thanks again Frank much appreciated. I'll look for a good diagnostic shop, and see what the fuel curves look like. No CEL as well.
hey just wondering, when buying a used car should I check the fluids= brake fluids, engine oil, power steering, ect before or after the test drive.
Jose Muralles ..absolutely. Here is a great video detailing that as well what that engine will really tell you th-cam.com/video/dQPY31yrUlc/w-d-xo.html Additionally..best to get a pre purchase inspection before you buy. Protect your wallet! Thanks for stopping by ~~Frank.
check everything! once you buy it its your baby!
Hi. I recently encountered a problem with my car . My car is a 2003 peugot 1.4 manual trasmission . The problem comes as you put the car on first gear run a little bit then you press the clutch .... If you release the cluth without shifting to a higher gear itll jerk .... It happens on every gear but on the heavier gears it gives you a harder reaction. What dou think it could be...
The clutch is slipping. It can actually go something like this; slip- jerk - jerk and then go, or even a bit more of that etc.
Thanks for the vid! Can a bad pcv valve cause overheating? My cars been overheating only when sitting idle for a few minutes and if you start driving it cools down. I figured they were seperate issues but just curious as to if that could cause it. Lucky me had to order the valve so I'm still waiting to replace it.
Sounds like your fans aren’t kicking on
My car idles rough after a cold start for about 10 seconds then runs fine afterwards, any ideas?
I'm having a idle problem.its a4.3 vortex it seems to run fine when first cranked but once I've drove it about 10 or 15 mins it idles really bad almost shutting off I've replaced the distributor and button checked all the vacuum lines and the mass air flow sensor there all fine what could this be??
Clean your intake pull your big hose off clean with rag changed my performance of my vortex
Same exact problem on my 5.7. So far I've replaced the IAC and MAP to no avail. Gonna try looking for air leaks when the rain stops.
Did you find the issue?
My car feels very bumpy I've changed the shocks and I put new air bags I have a Lincoln Town Car 2009 what else can it be?
74st Television ~~that’s a phone call. Ring me for quick tips.
Sorry but what is a CEL
Edward Ryback ~~a direct link (light displayed on dash with an engine symbol) warning you of a power train management fault~~if it is on~~needs attention. Great question & my apologies for not being clear on this .~Frank
You could have been less technical and just called it a "Check Engine Light" on the dashboard.
Obvious vacuum leak in the intake manifold gasket (s) somewhere. Of course, your typical mechanic will want to replace plugs, wires, injectors etc because there's money in that.
Dick B. ~or they may not want to introduce a new symptom & a comeback by reinstalling aged parts that have to be removed as a part of the repair procedure.
Why is it that mechanics never put their seatbelt on? Lol
Because mechanics don't die they lie n multiply
if you dont want to buy a smoke machine you can just buy a deck of ciggys (i recomend winnie blues or marlboro reds if youre from us)
common sense... check hoses for any that are cracked or collapsed or damaged in some way .... and replace them. A 'mobile mechanic' if available, can do it better and faster than you and it is likely a 1-time process.