Posts: 40 From: Houston, Tx , US Registered: Apr 2004: posted 01-12-2005 03:09 PM Could clogged fuel injectors cause that much of a problem? You are using an out of date browser. It has a really bad hesitation/stumble on acceleration. Slight hesitation when I started from a stop. Have you performed a fuel injection flush? Ford Mechanic: Steve S, Ford Technician replied 11 years ago. Show More. 2004 ford explorer 6 cul. Jump to Latest Follow 1 - 9 of 9 Posts ... happen to my buick.. same engine i think or close anyway. Ask Your Own Ford Question. The basic symptom of a misfire is a light to severe rough idle that's felt when the engine is idling and a light to severe engine miss (hesitation) when the engine is under load (for example: your Ford vehicle moving from a stop). 1994-2004 V6 Mustang Tech . Finally, there's a bit of hesitation when accelerating. Is this a throttle body issue, or possibly an MAF issue? Thread starter mjh; Start date Sep 30, 2004; M. mjh New Member. IF THIS VIDEO HELPED YOU OR SOMEONE ELSE, CLICK HERE TO DONATE SO I CAN CONTINUE TO SHARE VIDEOS. If I rev the engine while idling, the knocking noise is very slight but still annoyingly noticable. I was told it might be caused by dirty tappets. The bottled stuff is crap. Satisfied … History. Hesitation while accelerating. Idle Air Control (IAC) valve was the problem and is a very common cause for idling and starting issues on these cars from 1999 through 2004. Hesitation Definition - An engine hesitation is an interruption of continuous power during acceleration. Sep 30, 2004 #1 I have been having trouble with my 95 Mustang. SPONSORED LINKS. When Im accelerating, the car begins to hesitate like its not getting gas, or a plug is loose, etc. I have recently had problems with my RPMS. I could not believe the difference it made in acceleration response time. Ever since buying this 2004 Toyota Highlander V6 off the dealer's lot in Feb, 2005, we have experienced a lag or hesitation in accelerating from a stoplight or when trying to pass another car. Matthew Wright. Driving I can not give it more than 1/2 throttle without it … Hope to see you on the forums soon! This trip it didn't buck and kick like it was. DONT USE CHEAP GAS. It has been getting progressively worse over time. It's loudest in the lower gears but still noticable while I accelerate. The two cheapest things you can do to your car to insure it runs right is put in good oil and gas. 1 of 2 Go to page. For a better experience, please enable JavaScript in your browser before proceeding. We are the oldest and largest V6 Mustang forum on the internet. i thought i had a clogged injector but instead i had one that was stuck open and using gas like crazy. It may not display this or other websites correctly. Author: Topic: 289 hesitation/missing: Reed's '65 vert Journeyman . 2005 - 2014 S-197 Mustang -General/Talk- . You may be due for new plugs, wires and an air filter. I have severe hesitation when begin to accelerate up until around 2500 rpm (sometimes a popping noise, backfiring, up around the air intake), a loss of power, running very rich. You must log in or register to reply here. Check the coil pack with a multimeter. What it turned out to be was a bad rubber grommet, the one around the filler neck that goes into the tank. Try getting gas at another station and fill it up with a higher octane. It's usually between 2000-3000 rpm. When I got it, I changed the spark plugs to NGK coppers. I had the exact symptoms you described: running rich, hesitation during acceleration, sometimes it would pop through the intake, CEL was on too. Mustang Forums. Left the stock wires. The fuel injection flush really does work....i think that's the problem or a major part of it. Registering is free and easy! I replaced this (like 8 bucks i think) and everything else was back to normal after a few days. Clogged fuel injectors could be your problem then. This condition can cause dangerous situations in heavy traffic when drivers behind expect continuous forward movement. Go. It makes a fairly loud knocking noise while in drive. I have been having trouble with my 95 Mustang. It may not display this or other websites correctly. I recently recharged my A/C so I'm not sure if that has anything to do with it or not. Good Luck. You can find this tutorial in Spanish here: Cómo Probar Fallas En Cilindro (4.0L V6 Ford) (at: autotecnico-online.com). Go. D. dynasty_365 Member. Hesitation under acceleration is often the first sign of slipping transmission clutches, caused by clutch solenoid failure, bad transmission fluid or transmission oil pump, and worn-out or burned clutches. Make sure you get it done from the dealer. I have severe hesitation when begin to accelerate up until around 2500 rpm (sometimes a popping noise, backfiring, up around the air intake), a loss of power, running very … V6 Tech. Engine hesitates when accelerating. Eleanor's Girl Member. Matthew Wright has been a freelance writer and editor for over 10 years and an automotive repair professional for three decades specializing in European vintage vehicles. When I turn my car on it stays above 1000 RPMS and any time I press down on the clutch to switch gears, the RPMS rev up to around 3000 RPMS and when I'm in neutral just coasting the RPMS rev up to a little above 3000 rpms. Updated May 02, 2018 You know how frustrating it can be when … MY 2001 FORD MUSTANG HAS A HESITATION WHEN TAKING OFF IT SPUTTERS ALSO WHEN GOING UP A STEEP HILL IT JERKS . hesitation when accelerating. before you go wasting money on other things such as flushing and stuff, pull your spark plugs and look for one that is really dark or lighter compared to the others and note where they come from. Vehicle hesitates when accelerating from a dead stop. It is stock except for a CAI I installed. try this first. If you have any questions about your V6 Mustang or just want to connect with other V6 Mustang owners around the world, you have found the best place on the internet to do that. Well, one day I'm filling my gas up, and notice gas coming back out from under my car. Are you using cheap gas? http://www.3.8mustang.com/forum/showthread.php?t=214271&highlight=coil, Can you weld the water inlet to the thermostat housing, Erratic Idle on a 2001 3.8 Auto with 130,000 miles. Car is hesitating during acceleration - 2004 Ford Mustang V6. Am I in the right path? 1 of 2 Go to page. But I think the one on the back left may not be in far enough cause it looks like there is more white showing than others. our editorial process. Also, if I listen to the exhaust while its idling it makes a gurgling sound. 1994-2004 V6 Mustang Tech . Next time I get 80 bucks ill see. Clean the MAF. But it s still not right. Then I had a misfire. Jump to Latest Follow 1 - 20 of 24 Posts. Share this conversation. 1; 2; Next. Jun 16, 2011 #1 ok guys it started last night while i was on my way to work. For a better experience, please enable JavaScript in your browser before proceeding. Costs $100.00. Think about it...its only about a dollar more per fill up and your getting quality gas. I would try replacing these components if you haven't already. 1999 f150 4.2 swap with 3.8 mustang block. The engine hesitation on your Dodge may be created by problems in one or more components. I'm the second owner, it currently has 145k miles and i've had it for a year, it had 121k when I got it. Mustangs Tires & Wheels Motorcycles Used Cars SUVs Trucks ATVs & Off Road Public Transportation By. Very difficult in tight parking situations where the vehicle lurches forward as you press harder on the accelerator to start moving. In most cases, a bad throttle position sensor (TPS) fails to signal the engine computer about throttle operation. Musatng Hesitation. If your vehicle only seems to hesitate in top gear, or over about 45 mph, you may have a problem with the lock-up clutches in the torque converter. After checking for vacuum leaks, bad spark plugs, changed fuel filter, etc, I took it to a mechanic. Well I should probably go check it first. 01 mustang v6 hesitation while accelerating problem - YouTube Other causes may be bad or worn out components in the ignition secondary system, causing the engine to accelerate poorly and even stall. Matthew Wright. And lastly I replaced my wires, and hesitation was gone. No backfiring. I checked all of the vacuum lines and that helped for a day but as I started to used my A/C more it got worse almost as if the hesitation occurs when the A/C flips on. I have a 3.9L 2004 V6, automatic. Also check for any vacuum leaks. you could be wasting your money on flushes that may or may not fix your problem. The loss of power seemed to grow worse every week. 2 Answers . Even if it doesn't correct the problem, you may be due for the replacement anyway. He checked cam sensor (it was fine), checked timing (which read fine), tried to pull codes (none), checked fuel pressure (starts with correct pressure then immediately falls off), he said my vacuum reading was a little low (17 inches I think he said), and he said he quickly tried to check for extra play in my timing chain and there didn't seem to be a problem. Registering is free and easy! I have a 2002 v6 mustang. 1996 - 2004 SN95 Mustang -General/Talk- . hesitation. Answered in 57 minutes by: 8/24/2009. G ... Hesitation problems are probably the most difficult to pin down. (It did this on the old exhaust too.) Has the fuel filter been changed recently? V6 Mustangs. Posted by Aaron on Jan 03, 2013. i paid 74 dollars at oreilies and got a new one and it fixed the problem. We are the oldest and largest V6 Mustang forum on the internet. Hesitation and misfiring. Took complete car of it. As the title suggests I've very recently been having some engine hesitation, and jerkiness, most noticeable around the 2-3000 RPM mark. Well I'll give you three guesses to what it was.. You must log in or register to reply here. 1; 2; Next. Hesitation On Acceleration Problems ... it up and bought the coil pack. You can't really expect to stomp on the floor and leave a 10 foot mark behind every time . Another was to replace the intake manifold gasket. Parts are about $50 ea on Amazon, took about 15 minutes to do the drivers side and 5 minutes for the passenger. Symptoms Of A Misfire Condition? Then hesitation under light acceleration. Show Less. This may help. I'm thinking it IS the spark plugs now. JavaScript is disabled. no, I have not performed a fuel injection flush. Mild acceleration forced the car to downshift then it would take off normal. Next Last. There is a little hesitation but less than before and I think it's normal. If you have any questions about your V6 Mustang or just want to connect with other V6 Mustang owners around the world, you have found the best place on the internet to do that. Did you check to see if the plugs are gapped correctly and no cracks? i just go done fixing the exact thing you are dealing with. 1999 Mustang constant High RPMS please help. I also fixed a bad gap on my spark plugs (re-gapped) about the same time I replaced the grommet. It has been getting progressively worse over time. the electrical signal gets so degraded that it sputters while accelerating. Errrr I am only 17 and I hate screwing with the spark plugs cause they are a pain to get to. When a engine is hesitating it will cause the car to lunge or surge which will cause a sudden jerk as the car slows down. instead of #1 plug being black it was #2 this time. I have used plenty of cheap gas in the past (college student). My Mustang is a 3.8L V6 2000 convertible. Category: Ford. In 10 minutes there was absolutely no skip. Category: Ford. Steve S, Ford Technician. 1991 Dodge Grand Caravan V6-3.3L: Service type Engine hesitates during acceleration Inspection: Estimate $79.99: Shop/Dealer Price $89.46 - $96.56: 2007 Dodge Grand Caravan V6-3.8L: Service type Engine hesitates during acceleration Inspection: Estimate $84.99: Shop/Dealer Price $98.51 - $108.65: 1993 Dodge Grand Caravan V6-3.0L 1996-2004 Mustang GT. If I rev it off idle it stumbles really bad but if i give it just a little gas then rev it it feels fine. Car has done 79K miles.. to make sure that was the problem i switched the suspected bad injector with a good cylinder and ran it for 30 minutes and checked the plugs again. Get the fuel injector flush, i bet you that's your problem. You are using an out of date browser. Hope to see you on the forums soon! The mechanic was also concerned about a vibration in the engine that was shaking the whole car. Question about 2004 Ford Mustang V6. Submitted: 11 years ago. 2003 Ford Mustang GT 4.6L with hard start and poor idle (only when warm) problem. It occurs when just cruising at a constant speed (most noticeable when around town), as well as light acceleration. check your spark plug wires, i had a hesitation problem during acceleration, i've changed and cleaned almost everything, and same problem. JavaScript is disabled. Hm I am leaning more and more heavily on the coil pack. I recently replaced both VVT solenoids in my 2004 FX4 Supercrew and what a difference it made. Jump to Latest Follow 1 - 7 of 7 Posts. Thread starter dynasty_365; Start date Jun 16, 2011; Forums. Er I was driving it a few minutes ago and I stopped on the median and put it in 2nd and held the break and floored it and it spit and sputtered horribly. Jan 13, 2010 136 0 16. there are no engine codes and it idles just fine. Also have you cleaned the throttle body?