My 1994 volvo 240 stalls at idle when the engine is warm. It's happening more frequently as the weather gets colder, I'm not sure if that's a coincidence. The car is an automatic and I'm wondering if it could be something as simple as low transmission fluid.
View 1 RepliesA week ago, driving home, the tech started to drop quickly to zero then recover, like the ignition was turned off and then back on. I was able to make it home. The car was due a tune up. I replaced the crank position sensor (OEM), replaced sparkplugs (Autolite Iridium), air filter, fuel filter, no luck. I ohmed the coil packs, secondary resistance showed good, replaced the ignition control module (aftermarket). After this, engine would stall after it was at temp, could restart, once put in gear it would stall, but I could go in reverse and drive home backwards.
Reinstalled original OEM ignition control module. Towed to GM Dealership, mechanic said fuel pump was bad, ignition wires needed replaced, one injector ohmed bad. I took car home, replaced fuel pump (OEM), ignition wires (OEM), no luck. Removed plenum, found pcv valve clogged, and hose kinked, replaced both, ohmed all 6 injectors, 5 injectors read 12.3 ohms, 1 injector was 11.6. Replaced all 6 injectors, (Napa), plenum gasket, still same problem.
GM dealership said computer said no data, they though perhaps ignition control module was bad, but I don't think so. I hooked up my Actron shorting plug, reads code 12 which means no faults, no other codes. I noticed EGR valve has a lot of carbon in the hole, thought about changing it, but I'm really not sure where to go now. The car is a 1994 Chevy Lumina with 230,000 miles, spent about $500 the last week doing brakes, and trying to fix this engine. Where to go from here.
So, my 94 Volvo 940 has about 315k miles on it and everything works great except during the intense heat of the summer. It drives fine for about an hour or two, but anything north of two hours with temps in the high 80s will cause the car to eventually stall - usually the engine just sounds like it's misfiring for a few seconds, then I lay on the gas to find that there's no acceleration and pull over where it will eventually shut down. I let it cool down for about 15 minutes, then it will start fine and drive for a little while before stalling again. It seems that the longer I let it cool down, the more time I get out of it.
I've tried replacing the fuel relay and noise suppression relay. I always just guessed it was the noise suppression relay because it is located right next to the engine, and I just thought the soldering would melt when it gets too hot, then come back together after cooling. But, maybe this is totally off. I also replaced the mass air flow sensor before, but it had slightly different symptoms, and those have not come back. My problem now only happens on longer drives in the summer.
2004 Trailblazer 6cy. 2WD - has been experiencing a very rough idle, engine shudders - no matter how long it's been warmed up. Wants to stall off red lights and at very low speeds. Not throwing any lights yet - but the speedo is out ( a cam shift typical problem for this car) so I don't trust the console for lights. Worse when the heat or air is on. Rides fine with more gas/higher speeds. Definitely worse in colder temps but continues even after 40-50 mins of driving. I've heard a number of things, but can't afford to fix them all. I've heard plugs, dirty throttle camshaft, sensors, cam actuator solenoid, etc. All seem to have people who said it fixed and didn't fix the issue. Worried I'm going to stall pulling off a stop and rear end someone any day now. Where do I start!?
View 2 RepliesI have a huge problem. My 94 ranger 2.3L 5 speed manual transmission, has problems with idoling while it's cold, has no power going uphill and stalls when I slow down to stop. This is all after putting a new motor in. The old one was running ok with 310,000 but lagging bad. I figured with the driving I do, a new motor wouldn't be a bad thing. Boy, was I wrong. It has been a nightmare. But once the truck is up to operating temperature, it runs so smooth you wouldn't think there was a problem. But let it cool off, restart, and boom! There it is. We have changed so many parts and sensors with absolutely no change to the original problem. It's very frustrating. I just can't let this problem win. I will figure it out.
View 13 RepliesMy 1994 mercedes C220 stalls at idle. the local mercedes dealer told me that it is caused by the alternator overcharging. can this be true??
View 2 RepliesI have a 94 Cobra Mustang with a 5.0. For the past few months it has had an erratic Idle and stalls when trying to idle. I've had a number of suggestions on how to fix it and nothings seems to work. I checked for vacuum leaks, changed PCV, new plugs, new IAC valve, tested ICM and throttle TPS and even adjusted idle. Still no luck.
View 3 RepliesI have a 05 dodge magnum v6 2.7. Only when its warm it stalls at idle. Scanned it code p0137 came back low voltage o2 sensor 1 of 2. I replaced all 4 o2 sensors and still stalling...
View 18 RepliesI have a 1994 Volvo 940 and have previously owned a 740 for many years. I've only owned this car for about 1 month. The car appears to have been well cared for. Doesn't leak a drop of any fluids, everything works, and mostly a really nice old car. What happens is that it idles rough when it's cold. In fact, I have to pump the gas pedal to keep it going. When I first start off, the performance is less than what it should be too. Once it get warm, it mostly runs fine.
I have so far replaced, the Plugs, Wires, Cap & Rotor. All the vacuum lines, crank position sensor, Air Mass Meter and the fuel filter and most all the fuel lines too. The Fuel Pump Relay was replaced but I removed it and saw a few cold solders and fixed those but no changes in performance. Before I replaced the Air Mass Meter I brought it to local shop and they returned a readout of 2-3-2 which I'm understanding means running too lean. That's why I replaced the Air Mass Meter. (I did notice a big improvement once I replaced the Air Mass Meter too.) It was interesting that when I replaced the Distributor Cap, I noticed like black carbon in there and I'm not sure what could cause that. Although, I did find the previous plugs were not all the same. Three of them were high spark performance plugs and one was just normal
I pulled the Idle Air Control Valve and plugged one side to ground and the other side to 12V and noticed the flapper moving when powered on/off. The previous owner told me he replaced both fuel pumps about two years ago. It also looks like the fuel regulator valve is mostly new.
I'm guessing now that I have a problem with the Idle Air Control Valve or perhaps the Fuel Temp Sensor under the intake manifold. I purchased the Fuel Temp Sensor and just have not installed it yet. I really don't want to remove the intake manifold but I know it's not going to be that bad. I know that it could be carbon build up on the intake valves but I'm not quite convinced yet. I put some fuel cleaner in the tank to see if that works and so far nothing yet. The car only has 150K on it and I was told that during the owner before me did do highway driving.
When it's warm, the car does run very very well. The idle is still a bit quirky even when warm. For instance, when I power on the A/C, the idle RPM doesn't increase like I expect that it should. (It did on my 740) ... I'm still thinking maybe it's the Idle Air Control Valve too. Perhaps it's intermittent or do I understand that they can gradually open and gradually close?
We are at 120K miles. The vehicle runs fine most of the time, but every once in 10-15 starts, it will rough idle or stall after a short warm up time when my wife stops at an intersection. Once she restarts it, it runs fine.
I have changed the spark plugs and wires, the fuel pump, the crankshaft position sensor (was fried) and after consulting this forum, I checked the fuel pressure regulator and the diaphragm is not leaking.
I was able to recreate the rough idle and the CEL on the dash, but my two OBDII readers said there were no codes And the bluetooth reader I am using is indicating that the following tests are not completing: Fuel System, Catalyst, Evaporative System and Oxygen Senors.
The dash CEL resets itself upon restart and does not light until the symptoms return.
After reading the Haynes Repair Manual, I am wondering about the Evaporative Emissions Control (EVAP) system? But I don't want to lead the troubleshooting.
We bought the vehicle at 60K miles and it has been mostly reliable.
94 Ford Ranger 2.3L
I started to have a slightly rough idle a while back, but not severe. I figured she was just aging a bit.
Changed plugs. Check engine light came on. Changed plug wires. Then I had a couple of episodes where it started to lose power and idle really rough (stalling). Both times it stopped after a few minutes. Had code read- they said it was coils. Replaced ignition coils. Check engine light still on, but it went a few weeks without power loss.
Tonight the loss of power returned and didn't leave, and I had a glowing red catalytic converter after I limped home 20 miles (hope I didn't do any serious damage, I was stranded.)
Found this post : [URL] .... But there's no resolution.
So, I'm probably dealing with a misfire, and I'm sure I torched my cat after tonight. So any other easy diagnose/fixes for a misfire? I'm a shade tree mechanic- so I know just enough to get myself in trouble. If I can't get a resolution soon it will be off to the mechanic (which, maybe I should have done 1st...)
I'm struggling with an intermittent (of course) issue where, esp. if cold, I can't start my car unless I give it lots of gas. If I take my foot off the gas at all, it will stall, which means I drive this automatic two-footed (one foot on brake, one on gas) , giving it lots of gas at all times, including when stopped. After about 10 minutes it is fine, and is then good for the rest of the day. My trusted Volvo-spscific repair shop has tried replacing booster pressure sensor, fuel pressure regulator (both indicated by engine codes) and new plugs. The end result is I've got $500 into the car that does seem to run better when it starts, but the original issue is unsolved. I was thinking something is sticking with a cold start, or idle speed is incorrect, but can't figure it out. Seems like it should be an easy fix.
View 2 RepliesThere are two issues with my 1994 Volvo 940 (automatic). They may or may not be related, but that is why I'm asking.
1) When the engine is cold and at a stop sign the engine will rev up and down. After the engine warms up, the issue goes away.
2) Also when the engine is cold, when taking off from a stop the car doesn't seem to want to go.
You can mash the gas all the was down and it just kind of slowly gains speed. Eventually (5-10 seconds) it will act like normal and go and shift fine. I hope that is enough info and makes sense. I'm just trying to see what the problem could be and how to fix it.
Volvo 940 1994 engine shuts off while driving?
View 1 RepliesHave a problem with my Santa Fe. 2004 2.4l.
My wife drove the car when the problem first appeared. She had been driving for 30 min, roughly 30km, and the car looses power and stops. Won't start when she tries. It cranks but won't fire up. When she waits for a minute it fires up but stalls.
We took it to a workshop. No code. They changed the fuel filter, which hadn't been changed for a long time.
They took it for a drive and it worked fine. I picked it up and it was working. Then it died when I exited the highway. It had lost some power during a second while still on the highway. I had driven it for roughly 30km and the engine was hot. Again, was able to start it it up for a couple of seconds if I let it cool for a couple of minutes. Got a lift home and returned in the evening and it started on the first try.
Took it to work the next morning. Wouldn't start in the afternoon when it had been standing in the sun and was gazing hot. Opened the fuel cap to release any vacuum. No change. Again started when I returned this morning and it wasn't very hot.
The engine warning lamp hasn't light up. Will try to see if there is a fault code tomorrow. Will try to measure the fuel pressure eventually.
The valve position sensor and timing belt was changed a year ago.
We own a 2006 Volvo S40 2.4i. Occasionally, when my daughter is driving at very low speeds, such as braking when approaching a stop sign or stop light, or when she is accelerating from a stop, the engine shuts off, forcing her to stop the vehicle, put the car in park, and restart the engine. Fortunately, the engine always restarts. Unfortunately, however, the problem only occurs intermittently. It may happen twice within an hour, and then not again for two or three weeks. As a result, the problem has not been duplicated by the dealer or any other repair shop. And, when plugged into the computer, none of the codes show up. So far the dealer has removed carbon from the throttle valve control unit and replaced the alternator. But the problem continues. Not sure what do to next as the dealer says he is baffled.
View 2 Replies1994, 960 ... The vacuum controller has two "vacuum lines" attached to it. Should both lines have vacuum present? I keep getting a 241 code with sporadic idle and check engine light.
View 3 Replies2000 Volvo S70, 177K - This car is new to me, and shortly after purchasing it, I began having difficulty removing the ignition key when arriving at a destination. With the transmission in Park, and the engine shut off, the key just won't come out. Then again, sometimes there's no problem at all. Oddly, the problem seems to correlate with the cabin/engine temp. If I allow the car to cool off, then go back to it in a half hour, the key will usually come right out. Same thing with short trips. I'm fortunate so far that I've not been in any high crime areas where leaving the key would be risky; but I will need to solve this eventually.
I understand that there's a safety switch/sensor that ensures the vehicle is in Park before the key can be removed, and I've tried being a bit more "forceful" in shifting to P, but that doesn't seem to work. I'll be taking this to my mechanic anyway for a state safety inspection followup; are there any hints I can give him if I can't figure it out myself?
Is the temperature factor suggestive that the problem is in the transmission sensor? I'd prefer that the issue be a sensor or adjustment rather than in the ignition switch just to avoid the re-keying mess.
Last weekend I decided my brothers 850 T5 was well over due an Engine oil and AFT change (two years for oil and never for the atf). The car has done 182,000 and drives great. Any way I bought 20 litres of 15w-40 and 20 litres of DEX 3 atf as it worked out a lot cheaper and it can be used for my fathers 940.
Anyway on Saturday I got the engine warm and noticed the oil pressure light flicker on and off. it had never done that before so I should have checked the dipstick there and then but I just went ahead and drained the old oil and removed the filter. To my surprise only about two litres of black oil came out despite the fact my brother swears he checked it 2 weeks before and it was fine. I thought this was odd as the engine had been running perfect and at that level I would expect serious damage to have been done. I fitted the new filter and sump plug with washer, filled a 5 litre tub from the bigger 20L tub and poured in 4L. I checked the dip stick and it took the remaining litre to get the level correct. I checked it again and then started the engine to get the oil into the filter etc and the level was still perfect. I finished the atf change(that's another story) and thought it a job well done.
The next evening my brother was about to use the car and I said I would check the level one more time now it was cold. There was nothing on the dipstick. There was no oil under the car so I slowly topped it up but nothing showed on the stick. I knew there was at least 5 litres in there so I didn't want to over fill it but when I started it, it sounded tappety. I put another couple of litres in and the noise reduced but still nothing on the stick. he then drove the car for a short journey and it drove fine but I said it was still tappety. I checked the oil again and now the handle snaps off the dipstick.
I have done oil changes many times before and am really very competent mechanically (I'm an engineer). Any way this gets me doubting the dipsticks accuracy so I suggest he let our neighbour who's a mechanic take a look the next day and basically today he came back and said he drained the oil and there was only 2.5 litres of oil in the engine. He topped it up and it's running fine and I fixed the dipstick with glue to check and it's perfect there as well. The thing is I know that I put enough in there, and my 20 litre tub has only 10 left.
The car is fine now. I know the obvious ones are that it was my mistake and I didn't put enough oil in, or I don't know the difference between a 1 litre and 5 litre tub but I assure you that this wasn't the case. Is there any where internal this quantity of engine oil can leak to? the transmission? coolant?
Our 1997 850GL wagon with 160k miles has persisently noisy valves. At considerable cost, we replaced the hydraulic valve lifters with new ones from Volvo. Noise persists. Increased oil viscosity, now at a ridiculous 15W40. Also using an oil additive to further increase viscosity. Little if any noise when engine is cold but once warm, much valve clicking. We change oil religiously and keep oil topped up.
View 7 Replies1995 Camry 2.2 4cyl 165,000 miles FED (not CA).
Two days ago while doing a routine oil change I noticed my kids engine compartment was real dirty as we had alot of flooding from rain a few weeks ago. I sprayed the engine with a water hose w/nozzle to clean it. At the time I didn't know any better. The car was driven without any issue briefly that day. The following morning the car was driven a distance of 25 miles without incident.
After resting 30 minutes the car was started and began to idle rough and stalled repeatedly. When I showed up to inspect the issue it had been sitting about an hour. I went for a test drive and the car ran good. About 20 minutes later iI get another call saying the car is doing it again. It was sputtering/ hesitating when I attempted to accelerate it began to stall unless I limped it along staying off the gas.
Once I got it home I started doing some research and discovered that my spraying water in the engine compartment was probably what caused the issues I was experiencing. So I began to go through the motions trying to repair. I also noticed the car ran good when cold but at operating temp it would run rough. The check engine light has not come on.
I replaced the spark plugs, plug wires, distributor cap & rotor, etc... sensor, and air filter, I cleaned the throttle body port and IAC valve port with sea foam cleaner. I cleaned and tested the EGR valve & ports. Nothing has improved from my efforts.
I must of screwed something up good, since its been 2 days, it should be dry by now. I also been thinking that maybe some water got to the injectors. NOt sure if a cause, but the oil was changed right before I sprayed engine.
My course of action as of right now is.
1.Check and clean all electrical connectors
2.Replace distributor with a re-manufactured one
3.Replace upstream o2 sensor