2. The engine is very sensitive to calculating the air entering the engine, to calculate the right air-fuel mixture. Backing off on the throttle eliminates the stumble, then you can advance the throttle slowly. If the problem does not occur when the engine is cold, the TFI module is definitely suspect. 2005 mustang v6 stumbles on acceleration and stumbles real bad when the ac is on. 90 Bronco, 2011 Supercharged 5. drives. I believe that is about the only engine related mods. I changed the fuel filter and it still has the stumble. Just got it installed and been driving it around town the last couple days and I'm noticing that when I'm cruising down the road in town about 30 mph, I'm feeling a hesitation or stumble. 1995 Ford Escort: revving. Slight air leaks; manifold gaskets, PCV valve stuck, split breather hoses, etc. Code P0123: Throttle Position (TP) Circuit High Input. This is done to insure pressure at the injector when cranking,otherwise hard starting would insue. #11. Just running around town, the check engine light will go on and off. 13: Cannot control RPM during ER Self-Test [low/high] RPM check. Not sure if this is part of the same problem recently before this started my cd player in my car has not been coming on either. #9. I performed a block test, it came out fine. . Take the bolt out and replace the coil. Sludge build up in the throttle body can cause a poor engine idle, stalling, and/or hesitation. Our Ford PCM are specifically programmed to your VIN and flashed with the latest software update from Ford. read more I have a 1989 Ford Escort Lx 1. Nearly every Focus model built at Ford’s Michigan Assembly Plant from the 2012–2018 model years is under recall, for a total of 1,282,956 cars. 3 light acceleration surging and stutter; 1999 - 2003 7. here is a rundown of the combo: stock 90gt bottom end, gt40 heads, gt40 cobra intake, e303 cam, shorty headers, catted h-pipe, catback, upr cold air, 19lb pro-m for cold air, new 19lb injectors, 65mm tb, looks to have an accel cap and frpp wires. 9 inline 6 stalls when you accelerate fast. The North American version of the Ford Escort is a range of cars that was sold by Ford from the 1981 to 2003 model years. 1 answer. 6) Bad Oxygen Sensor. Hey there, I found a great deal on a 91 K2500 5. See your Ford or Lincoln Dealership or Ford Authorized Distributor for additional details. T5 5 speed. 1999 ford escort: sohc. 93 FORD ESCORT AUTO/ I RETRIEVED EEC CODES THAT READ SECONDARY FUEL CIRCUIT OPEN AND H2OS-LEAN CONDITION. Nothing fancy, mild cam, headers, and the factory 2bbl. I haven't yet had the chance to test vac, fuel psi, and TPS readings when it's 80+ degress ambient yet. Engine sporadically sputtering/hesitating/chugging under accelration and/or uphill. Scottdagoalie. 93 ford explorer xlt: speeds. P0122 is a diagnostic trouble code (DTC) for "Throttle Pedal Position Sensor/Switch (TPS) A Circuit Low Input". well, 94 t-bird, won't start, stumbles if u put the throttle open, it has new plugs, 1 coil, fuel press. The most common causes for slow acceleration in Ford Ranger are clogged air filter, dirty mass air flow sensor (MAF), clogged fuel filter, fuel pump malfunction, faulty oxygen sensor, dirty throttle body, worn spark plugs and clogged catalytic converter. truck ran perfect for about five minutes, attempted a test drive and the engine started running very erratic before even. It does this 4th through 6th but not noticable in the lower gears. 4L XLT SuperCab (automatic transmission) has had this problem since i got it (about 8000 miles ago. it idles great and takes off in gear ok, but when you get on it,the check engine light comes on and the motor loses all power like its choking. 9 off idle stumble. ) To correct the RH & LH mismatch on 91-93 5. The check engine light can indicate many issues within a car including a faulty throttle body. k. 9L automatic Escort has the same issue - I've decided to live with it but here's the cause: All 4 motor mounts are old and the design of the engine promotes the transmission of the engine pulsations through the body. 3. MasterPro Ignition 3 Terminal Throttle Position Sensor - 2-99035. If I hit the gas too quickly at lower RPM the engine will almost die, then pick up. Do this. A test light is needed. Here is the most common cause of surges and stalls and low idle, it is the idle speed control air-bypass valve and throttle valve, they get full of gunk over the miles and cause idle issues (stalls) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a. 8 dohc engine, it ran rough then died. Hope this helps. "DPFE Sensor for EGR Valve". . LEAD AUTO TECH. is the CEL lamp out running> if not, pull the DTC codes and post them. throttle body i have a 98 ford f-250 with a 5. 045-. Loosen the nut about 1/2 turn. Step 11 - A timing belt or chain is used to keep the engine. read moreI have a 1989 Ford Escort Lx 1. This isn't a buck, its a loss of power. It does this 4th through 6th but not noticable in the lower gears. HAve replaced all vacuum lines, pcv valve and hoses, idle air control valve, and cleaned mass airflow. Sometimes it runs fine, sometimes it does. 2002 Ford Taurus DOHC 115,000 miles. Nov 27, 2011 • Cars & Trucks. Have the cars computer scanned at a local auto parts store to see if there is a pending code that has yet to turn on the check engine light. 14,420 satisfied customers. 9L --- 146k miles -- Car starts and runs fine when cold, after driving for approximately 10 mins, and warming up it surges idle betweein 1200 and 500 rpm and tries to stall. It has also died when coasting to a stop. . Spray the throttle cleaner or engine cleaner into the throat of the throttle body. Totally lost - I have a 1993 Ford F250 7. History of motor: New long block installed by Thunder Bolt Motors, the new motor has less than 1,000 miles. The engine idles pretty well. An exhaust manifold leak would not case it to run rough. (96 S-351). Usually around 2k rpm. light engine light comes. Forums. Answer. 9L EGR success story!!! Codes 327, 332 - There are so many threads that mention such familiar symptoms, so I'm writing this down as a solved issue to give data points that the search robots and fellow FTE'ers can hopefully find if they need it. 99 ESCORT W/2. 9 and a Mazda 5 speed manual. . Engines should run smooth and evenly when at idle, never fluctuating in rpm or dying. not enough fuel- Has GT40 pumps installed. The Check Engine Light may illuminate, the engine may run rough and have misfires on acceleration. I have a 1991 ford escort 1. Avoid cranking the starter for too long, or you will burn it up and add the starter to your. 5. The proper adjustment prevents the diaphragm from getting stretched to its maximum limit at wide open throttle. 030. On the drive home it got worse. Common leak points include any vacuum hose connection to the intake manifold (including the PCV valve, EGR valve and brake vacuum booster), intake manifold gaskets, the throttle body gasket, and the air inlet hose between the airflow sensor and throttle. (much thinner than original mercon 2 in vehicle) making sure to ease into all shifting with light throttle pressure. . 1. At higher RPM and converter unlocked ICP pressure is also lower. Lud Light-throttle tetchiness tends to mean running lean. got to the house and parked . Hello, I have a 1993 Ford escort, with 52,000 miles on it. My 1993 ford f150 4. I'm just off idle. As the throttle is moved slowly through its travel, the voltage should rise evenly until you reach the fully open position, where the voltage should be approximately 4. 1997 Ford Escort. CAR HAS DEAD MISS. Commonly the ignition coils and/or the ignition coil boots are the cause of this problem. 0, 93 Festiva, 92 Sable, 86 Mustang, 82 Mustang F150 Forum. On heavy acceleration - it's not a problem. 62mm dual throttle body. Once engine warms up it high idles at about 1800 RPM. 4. I know this will sound unrelated but you might check your wiring around the rubber hoses for the valve cover Radium Catch Can. At light throttle (i. I just purchased a used 1999 Ford Escort 4 cyl. Next day it was a little better but still bad. The car stars right up and idles fine in park. My scan gauge II shows no codes and ICP and IPR are within spec. 1,939 satisfied customers. 1987-1997 460 cylinder head compatibility. 9L motor the problem is that it idles down and kills sometime otherwise it catches itself but Idle is very low and rough. I have a 1991 escort gt with the 1. 8 dohc engine, it ran rough then died. Inspect the whole EGR system, the position sensor, the EGR valve and the EGR soleniod. I would begin by inspection and cleaning our EGR passages. truck shut off like it ran out of fuel. It seems fuel related. Only when casually pulling out. Its a lot worse when cold. 030 over with Edlebrock cam and intake, C-6 w/AO4D internals, 3" lift w/RS 9000, 33x12. At a faster cruise RPM if I press it a bit it stumbles then takes off. Car would not start. 9L A/C Standard Trans. 0/302, 5. Began to have an engine miss / stumble at anything above light throttle. It stumbles as if it's missing a couple of cylinders when you accelerate. have a 95 escort sometimes starts ro sputter and car stalls or you have to keep your foot on the gas a little to keep it from stalling when you are at a. Intermittent lack of power when accelerating. *Limited labor costs. This always goes away if I just give it a little more throttle. Hesitation when accelerating your vehicle down the road. Apply more throttle and it goes away. Rough start up and cuts out for the first 3 or 4 miles,then runs fine. TPS enrichment (I might not be calling it the right thing, but it was the most active one. January 31, 2014. I pulled the codes by grounding the self-test lead, and the codes I got were: 539 something to do with ac 176 lean condition on left H02S 1994 Ford Escort 82,885 mi, Visitor. , fuel pump runs, good fuel press atthe rail, cams n crank are in time, an a good solid spark, put plugs in due 2 miss while driving, at same time put in new coil and shut off fuel pump 2 clean injectors. i have a 1988 ford escort 1. 2003 ford f250 super duty 5. Has sudden acceleration does not seem to be. . Save Share. Frequently bought together. wrong. It seems to do this hot/cold. May eventually free up valves. Secondly, another problem that has. 9L automatic Escort has the same issue - I've decided to live with it but here's the cause: All 4 motor mounts are old and the design of the engine promotes the transmission of the engine pulsations through the body. The Ford tech said under 10% throttle. My son's 95 Ford Escort died at a traffic light. 030. step on the brakes and idle runs bad. 0 split port rough idle only when in drive and at idle mainly with air/heat /blower on. I've got a new 302 (306) in my '68 Galaxie. Combo is a blown 351w with OBD II electronics. Has fire. ∙ 12y ago. warm, stumbles on acceleration. 9L EFI, 5 speed manual, 70k miles. 2canoe September 8, 2009, 5:35pm 1. MEMBER. I just snatched up a 93 Escort Lx 1. 9L Engine Station Wagon. it seemed to help somewhat but still hasn't got it under control. Your F150’s engine is a giant pump. 256- 0. it has a new fuel pump,fuel filter,pvc valve,spark plugs,air filter, and spark plug wires. c. Here is the common cause of surges, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle). And you know, my 1988 F150 was almost the same truck and I never ever had a miss in it. Posts: 52. 1987 - 1996 F150 & Larger F-Series Trucks - truck stumbles. Seems to be affected by cold weather but not always. Engine will run smooth with constant throtle position. No commercial exceptions. jonboyb New Member Posts: 11. Transmission Oil Spark plugs Fuel filter Wiring Jerking/Hesitation. i replace the fuel filter and cleaned the MAF se. Wiki User. It pulls in air (where it is measured by the mass airflow sensor). Towing under pressure makes the whole car vibrate badly. The spark plugs were replaced about 4 months ago and got a brand new transmission 5 years ago this coming summer. Sounds like the EGR may be sticking open, causing the computer to think the truck is running lean. Average repair cost is $1,770 at 58,000 miles. 7L Ecoboost STX 4x4 and I would like to know if other owners have experienced the same thing, as the service manager is now saying that all of the 2.