Ford F-150 - 1997-2003 :: Slight Misfire / Hesitation And Possible Backfire
I have a 2001 f150 5.4 with 200,900 miles. Just bought the truck about six months ago off my dad when he got a new one. I am now experiencing what seems to be a slight misfire. With the hood up pulling the throttle around 2200 rpm starts making a loud knock. Above that rpm nothing and below that nothing. Standing by the tailpipe it sounds like a small backfire. It Idles really rough and when you get that sound out of the tailpipe it jumps like its hiccuping. And tailpipe is vibrating quite a bit.
Things I have done in the past month include replacing the pcv valve, changing spark plugs, cleaning throttle body, cleaning MAF, took down exhaust to check cats because i was experiencing a power loss and bogging. When the exhaust was off i punched the two rear cats. I ran a bottle of iso heat in the gas. Everything seems to have supported the power problem but now less than a week later i am starting to experience the knock and backfire type sounds.
Lexus GS 2013+ :: Occasional Hesitation With Engine Backfire When Starting In A Parking Spot
Over the past few months my '13 350 occasionally seems to hesitate when starting from a light, in a parking spot, in general no/low speed maneuvers. It doesn't do it every time, and it's not a hesitation with engine bucking, backfire, or noise. It just feels like the power takes a few seconds to come on when I hit the pedal. Sometimes. It has been interesting a few times on highway on-ramps...
At first I thought it was my accelerator technique, using the wrong foot angle, but I've been careful to apply the pedal correctly. Since it doesn't feel like the classic engine miss I was wondering if there are any other things to consider, such as transmission (hopefully a software update or something else simple) or anything else.
Golf IV / Jetta IV :: 2000 - Backfire During Downshift
2000 2.0 has full oem exhaust, when downshifting it pops, could this be something in the exhaust or fuel? Not sure as it pops about 2-3 times per downshift. No more no less.
View 3 RepliesGolf IV / Jetta IV :: Idle And Backfire - No Power And Stuttering
1.6 FSI .. Very long story short, the engine is running like crap, idle is jumping up and down. Almost no power, its stuttering and so on and so on. Well I talked to a mechanic and he found out the problem, a throttle vacuum. (kinda like choke) he explained it as.
The part was ordered, and arrived. Me and my dad tried changing it and we met some struggles. After looking at it closely and trying different things we kinda gave up.
Here is the part that is broken, it adjusts the amount of fuel when its cold vs. hot
We concluded we needed to take the whole intake to access it ?
Golf IV / Jetta IV :: 2001 - Surging / Backfire And Missing
I just acquired a 01 wolfsburg jetta 1.8t and first time vw owner.
I just got the car and found that all the pcv ventilation hoses were crumbling and broken down. I replaced everything under the intake up to the y at the valve cover. All was in stock at the dealer was the oil cooler elbow, tee and pcv valve. From there, i made my own hoses using 3/4 hose and couplers.
Before this, it ran fine but sometimes at idle the idle would jump up and down but not die. I also had a couple codes, can't remember what the number was. One was O2 bank 1 sensor 1 lean and i think the other was O2 related.
Now, after trying to fix the leaks. CE light went out but idle still does the same but my boost improved from like 5psi to like 9psi wot. That's not an issue but coming home tonight when i went to second, it felt like it was dragging or not wanting to accelerate or accelerate and like stall for a second. If you blip the throttle it back fires while in second when its doing this.
Only mod on the car i know of is it has a forge DV/blowoff i guess is the correct name. It can be used as a dv or both.
Golf IV / Jetta IV :: Backfire And Go Into Soft Limp At Around 5 - 6 Psi While Accelerating
Ok, so my 1.8T hasn't really run right in quite a while, it dramatically goes into boost, then sometimes will just backfire and go into soft limp at around 5-6 psi while accelerating.
Specs:
Stock ECU
3" turbo back
TIP
FMIC
Short ram air with K&N
2.0 coils with proper NGK plugs (I cant remember exact name right now)
All evap/SAI and emissions deleted
Coolant ball deleted
Replaced:
- Crankshaft position sensor
- Camshaft position sensor
- MAF (autozone brand )
- Coilpack wire harness
- Swapped between 2 different N75's
- Piston and spring in Forge Splitter
Below is what I pulled with the vagcom cable I just got in the mail today, along with the DTC names I found from Bentley's page. I know the 411 and 441 are from the SAI/Evap delete but other than that what I should replace next?
VCDS-Lite Version: Release 1.2
Monday, 07 July 2014, 17:30:49.
Chassis Type: 1J - VW Golf/Bora IV
Scan: 01,02,03,08,15,16,17,19,22,29,35,36,37,39,46,47,55 ,56,57,75,76
[Code] ....
Golf IV R32 :: Random Backfire When Getting Out Of 1st Gear Into 2nd While Driving After Cold Start
I have been having this odd issue where my car will back fire after a cold start. It only happens when getting out of first gear and going into second while driving (it happens as soon as I press the clutch pedal all the way in, and stops as soon as the clutch pedal is back out). It doesn't happen all the time, just every now and then. My only explanation of this would be that I live a mile above sea level (I looked at the FAQs and know that the car will act like its about to die on a cold start, yet it doesn't). So with my only "explanation" of this phenomenon being that I live a mile above sea level and the engine running rich for a few minutes after start up. My car is stock with the exception of the flapper mod.
Pics for Clicks ......
Golf V R32 :: Turbo Idles Then Stalls - Loud Backfire When Started To Increase Throttle
I have a mkv r32 turbo. It had C2 910cc software, car ran great. I had to change to UM 870cc software and injectors in order to get UM dsg stage 3 tune. I had it out for test ride, ran nicely for 2 miles. Then i started to increase throttle, a loud back fire, so i pulled over. It stalled, i restarted it, ran for about 5 secs at 14.5 afr, then sputtered to 10s afr, the stalled out completely.
Had it towed home, all 6 plugs were black. VCSD mobile log states multiple misfire and misfire #6. I put new plugs and switched coil packs, same issue.
Golf IV R32 :: Sluggish On Initial Acceleration And Very Slight Backfire - Camshaft Hall Sensor Loose
I had been driving around for a few days and the car had been feeling a bit sluggish on initial acceleration and there was also a very slight backfire.
Just seemed to have lost some crispness. No fault codes thrown with VAGCOM.
Found one of the Camshaft Hall Sensors loose. I have had this before with the exhaust cam sensor but this time it was the inlet one. The bolt just comes a bit loose and the sensor can swivel around very slightly if you move it with your hand.
It seems to be enough to upset the the performance but not enough to throw any codes - after all it is still working perfectly sending a signal as far as VAGCOM is concerned.
Just need to nip it up again with an M5 Allen key and you are golden. One with a ball end makes it easier to get to. Just regained about 20 HP
Pic for information ....
Golf IV / Jetta IV :: 2001 - Loud Backfire - Replaced Chain Guide Still Rattling - Only 3 Cylinders Working?
So, I was driving down the road one day at like 50mph or so and had the loudest backfire I've ever heard. As I was putting my car on the dolly to tow home I heard a bunch of rattling and thought maybe it was a rod bearing or something. I pulled the oil pan and found chunks of my upper chain guide (rod bearings were fine).
I replaced the chain guide and checked the timing hoping it would fix the problem, but it didn't. The rattling was gone but I was only running on 3 cylinders. Did a compression check and had 0 compression in Cyl5 and about 60-70 in Cyl2. I don't remember exactly what the compression was for the other cylinders since it was a while ago.
Started thinking it was bent valves, so I just recently pulled the head off to check them. They all looked like they were seating properly and none looked bent from what I could tell. I'm about to try to put some compressed air through it to see if the valves are leaking anywhere. the plugs, wires, and coilpack are all functioning properly.
Golf IV R32 :: 5th Gear Hesitation After Downshift
So i just noticed this issue the other day. If I downshift from 6th to 5th the car hesitates before it starts to accelerate, this only happens for 5th every other gear is fine. This only happens downshifting from 6th to 5th. What is going on?
-apr flash
-just rolled 56k
Golf IV R32 :: Hesitation In Throttle And The EPC Light Kept Going On
Where to find this wiring diagram? I was getting hesitation in my throttle and the EPC light kept going on.. So I did some looking and found that 2 wires pulled out of the plug in the cowl harness... There are like 5 plugs under there, and these 2 wires were pulled clean.. So I cant tell which one goes to which... I know its definitely part of the 4 wires going to my pedal...
View 2 RepliesGolf VI R :: Noticeable Hesitation When Accelerate
I'm having with the first startup in the morning. The car turns over fine, but when I accelerate there is a noticeable hesitation. This was only occurring for the first 20 seconds, when I accelerate out of my driveway. Now, it has gotten progressively worse. Still not stalling or anything like that, but it has become more pronounced. I have an APR stage 1+ with a Carbonio intake. Others mention they were experiencing a similar situation. I have tried idling before shutting the car off as well as letting the car sit for 30 seconds after I start her up. Im wondering if I disconnect the battery and allow the ECU to reset might work.
View 24 RepliesGolf VI R :: Hesitation When Pulling Out Of Driveway
I have an APR stage 1+, HPPF, Carbonio intake. First thing EVERY morning my car will give a noticeable hesitation when pulling out of my driveway. After this 1 time event, the car rides perfectly. It happened every day. I was told this is gas pooling or some such issue.
View 11 RepliesGolf V R32 :: Slight Hesitation On Takeoff?
Noticed A Slight Hesitation On Take off?
View 23 RepliesGolf/GTI VII :: Throttle Hesitation While Shifting?
Have any other PP 6MT owners experienced strange throttle hesitation while shifting with a APR 1.2 HO tune? I know what turbo lag feels like, but it is almost as if the throttle position is not being read for 1-2 seconds after shifting.
No matter how hard/fast I shift, I can't get the tires to chirp, even shifting at high RPM. When I watch my speedo after shifting, the needle does not move at all until the delay ends, and of course it moves fast when the boost builds. But for 1-1.5 seconds after shifting, with the pedal to the floor, I would expect some acceleration, even not at full boost.
Even when not shifting, and going from no throttle to medium/full throttle, there is a delay with no acceleration and no significant noise/rev build.
I don't remember this being as pronounced before I was tuned. Also, I had GFB DV+ installed about the same time, but I would expect the DV+ to make this better, not worse.
Golf IV R32 :: Hesitation And ESP Light On - One Engine And Two ABS Codes
This whole time I thought it was a bad or dirty MAF and it's not as I replaced it 3 times. Car hessitetes and throws a ESP light on so now I think it's problem with abs or brakes.
I have engine code:
-16486 P0102 Air mass meter G70 signal too low
I do have a VF MAF harness extension cause used to be S/C maybe that's why the signal is low, then 2 abs codes:
-01314045 Engine control module (ECM) check DTC memory there isn't much info on this but I heard a lot of people replace their ABS control module cause VW says most have short in them but in ECS tuning they don't have one for R32 like R32 doesn't have it. Does R32 have it.
-00495 ESP - sensor unit, voltage supply
I tried clearing all the codes but comes right back followed by a hesitation.
Golf IV R32 :: Slight Hesitation When Upshifting To 5th Gear
When upshifting into 5th gear there is a slight hesitation before actually going into gear? I do not have this issue with any other gears!
View 24 RepliesGolf IV R32 :: Random Throttle Hesitation In First Gear
I finally decided to take my car in to the dealership for this random split second hesitation that mostly happens in first gear. I have 8600 miles on the car and it has done it since the day I bought it. I thought it might have been compressor related from running the AC. I have tried driving with no AC and ESP off and it still does it.
So I take it in and they decided to let the new guy work on my car. I take him on a ride (AC and ESP off) and sure enough it does it nice and strong for him to feel it. I was happy so we went back to the dealership and they gave me a 2.slow rental and I was on my way. 24 hours later they call and tell me, "Ron we believe it might be your throttle body so we're waiting on the regional master tech to get his opinion before we put a $750 part on your car".
I'm like "ok, whatever you say, just call me tomorrow with an update because I don't want it back till it's fixed". They call me the next day to inform me that my brake light switch was faulty ($10.25), they replaced my wiper blades, adjusted my wiper arms and the car was ready to be picked up.
Now that I have it back I can say driving it now that it's acting normal is an adjustment. My mind expect that hiccup but it doesn't happen, at least not most of the time. I'm not completely convinced that this hesitation is gone because I think I felt it happen once yesterday. Time will tell... In the mean time it is 95% cured.