Volvo - 940 :: 1994 - Engine Will Rev Up And Down When Cold
There 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 :: 1994 850 Turbo Wagon Starts Rough And Idles Very High
My 94 850 turbo wagon starts rough and idles very high. the rpms dont come down. After turning car off, wont restart again unless I let in sit for a while.
View 11 RepliesStalling :: 1994 Volvo 240 Stalls At Idle When Engine Is Warm
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 RepliesToyota :: 1994 - Overheating And Rough Idle
My 94 Toyota Pickup is having a strange intermittent issue. Engine will run hot, like the thermostat is stuck periodically. Does not overheat, just runs much closer to the red than usual. Again this only happens sometimes. It is worth noting that it is winter here in Northern Sonoma County, CA, so it may actually get into the red if I were driving around in the summer. I have also not taken it on trips over 30 miles when it was doing this.
When this problem occurs (e.g. the engine has been running hot) and I shut the truck off and say run into the store, then come back to a heat soaked engine it idles very rough when started (like it's missing on one cylinder). Once I put it in gear and start driving the idle smooths out and I have no problems. Problem has been going on for about a week.
Sticking thermostat seems obvious but that does not explain the rough idle on start up. Or does it. If so why?
C/K :: Code 43 On 1994 1500 Chevy - Rough Idle
I am doing a side job and this thing has a rough idle. I put the scanner on it and pulled code 43 ESC and a ritch and lean code from the O2 sensors. I know the O2 codes are probably from running rough. It has been a while but could the knock sen be the problem or the ESC itself? I looked for the ESC by the throttle body but didn't see it. I remember what they look like but this is a late model 94 are they some where else?
View 4 RepliesVolvo - V40 :: 2004 Won't Idle Sometimes When Cold Outside
We have an 04 Volvo V40 which won't idle when it's cold out, especially at altitude. Not all the time- it seems to be somewhat random, but it is getting more frequent. Our mechanic has replaced the MAP and TCV sensors and that didn't make any difference. What to try next? It recently passed an emissions test, so when it idles, it runs fine.
View 6 RepliesVolvo :: 760 Turbo Will Not Idle Properly - Rough Between 55 And 70
760 turbo intercooler 2.3 4-speed auto. It will not idle properly but when you run it around town it is fine, smooth and powerful. If you take it out on the motorway it will be ok for speeds up to 55 (lumpy going uphill) if you push it over 70 it is ok, but between 55 and 70 it is rough and sort of misses without backfiring. Also a cloud of black smoke comes out of the exhaust. If you kick it down to 3rd it will go like a rocket and not miss at all!! It has been seen by the RAC and been in the garage and they say everything is working, but can't check the air flowmeter as it would cost too much to buy one and it works fine.
View 3 RepliesFord Ranger / B-Series :: 1994 - Running Rough At Idle?
Engine runs rough at idle. Two plugs are black and just replaced head gaskets. I installed new short block and new heads six months ago. I can't seem to figure out the problem and I would like to trouble shoot more before tearing heads off and going any further.
View 2 RepliesCelica :: 1994 Toyota GT 2.2L Automatic - Rough Idle When Fully Warmed Up
The car: 1994 toyota celica GT 2.2L automatic
Here's the problem: car starts fine when cold. When fully warmed up, if i stop to go to the store or something, and then start it after like 20 - 30 minutes it will start and the idle will be fluctuating between 800 and 400 for a few minutes and then even out. sometimes it will actually start up and die immediately, in which case i can save it by giving it gas for a few seconds and then it's fine.
What I've done so far: plugs (NGK), wires, cap, rotor, fuel filter (toyota), (checked air filter. still clean), tried cleaning the throttle body and IAC with some deep creep spray while on the car (not much effect).
Volvo - S60 :: 2002 - Rough Start / Idle And Will Eventually Stall
When I start my S60, it runs extremely rough and will eventually stall. I do this over and over . . try and put it in gear and it will go a bit, run very rough, and will stall out. After a few minutes, something kicks in and it runs perfectly. If I don't try to drive, and sit with it idling, it runs very rough and I have a difficult time getting the rpms up. Then, the engine will suddenly race for a bit and everything is fine. It is very periodic in nature, doesn't matter if the engine is cold or not. It can sit over night and be fine, or do it, I can run around all day without problems and then suddenly it decides not to start up and run. The temperature outside doesn't seem to be a factor.
View 2 RepliesBuick - Lesabre :: 1994 V6 Smooth When Idling In Park But Rough Idle In Gear?
1994 Buick LeSabre Custom 3.8 Litre V6 with 103277 miles.
It runs smooth when idling in Park, rough when I put it in gear when I am stopped (either drive or reverse) has hesitation when accelerating, it smooths out again when driving then it starts to drive rough at about 55 MPH.
Mechanic told me it was the plug wires. I replaced those and the plugs. This fixed the hesitation when accelerating issue, but the other issues remain (now even seem a little worse) I thought the plugs and/or wires were bad, so I rechecked the gauge on the plugs and traced to make sure I had the wires hooked up right. Everything seems in order.
I have added fuel injector cleaner, and changed the oil, oil filter, spark plugs, spark plug wires, air filter, flushed the radiator, and changed the thermostat. (For a tune up since it has admittedly been a while)....
Ford Ranger / B-Series :: 1994 - Idles Rough / Stalls When Cold But Runs Great When Warm
I 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 RepliesS-10 :: 1994 Chev Blazer - Hot Exhaust / Rough Idle And Black Smoke Out Of Tail Pipe
I have a 1994 chev Blazer S 10. that has thesy troubles. when it warms up it runs high and hot exhaust and ruff idle. with a hot cat. Replaced EGR carbon build up at times.replaced fuel pump, and all the senors under the hood. Still runs the same.
View 3 RepliesFord Ranger / B-Series :: 1994 - Rough Idle / Stalling - Catalytic Converter Glowing Red
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...)
Ford Aerostar :: 1994 Starts / Idles About 10 Seconds Then Begins To Idle Rough And Dies
I just replaced the water pump and put it all back together, now it won't run well enough to drive. Checked vacuum system, all sensor connections, hoses, gas cap, changed fuel filter, I can hear the fuel pump kick in, reset system with battery disconnected and have looked at everything I can think of so far.
Now - starts fine, idles about 10 seconds and then begins to idle rough and dies. If I use the throttle I can often keep the idle up, but then backfires or acts like no fuel and again dies. Used fuel cleaner and made sure there was plenty fuel in tank.
I am looking at replacing sensors at this point but which one first?? They get a bit expensive real quick.
Ford Ranger / B-Series :: 1994 V6 Rough Idle And Lost Fair Amount Of Power
I have a 94 Ford Ranger 4x4 4.0 V6. It has developed a rough idle and has lost i fair amount of power. I cleaned the maf sensor and iac valve. Along with replacing an o2 sensor that was reading bad, with no improvement. The guys at O'reilly took a look and think I may be dealing with a timing issue or a warped valve. My question here is to found the culprit? I'm very inexperienced at working on vehicles and am damn intimidated by the scale of a project like timing. I should add that while traveling on the highway in high gear at low rpms, it develops a rough stutter. I can either power through it or ease off to get it to stop, but it resumes shortly after. It almost acts like an egr valve stuck open when on the highway. But that doesn't account for the rough (a consistent put, put, put...) idle.
View 4 RepliesVolvo :: 740 Engine - Rough Idle / Fair Amount Of Carbon At Exhaust Pipe
I've got an '88 Volvo 740 Turbo Wagon: 5-speed, 225K miles, that's been acting up over the last year. She doesn't burn oil (qt in 1500 typical) and appears to still be tight. The Turbo works and bearings make no noise. The engine service light does NOT glow (but I admit I haven't checked the bulb). I do have a Haynes manual and have been using it to assist with some results (see replaced items), but I'm not trained on this car and this manual is woefully lacking in good diags for some obvious things. (IMG: [URL] .....)
Symptoms: She cold starts OK, but try to restart warmed at all and she usually has to sit at least an hour or no go. Outside temp seems to make little difference. There's a gassy smell while cranking warm and it's very much like a flooded carburetor engine. Often, the engine will finally catch with the pedal floored after a long crank. Also, after warming and driving a few minutes, the idle erratically will not return to normal, sitting up at 1800-2700 RPM for a bit before finally calming down. It was also running a little rough. There's a fair amount of carbon at the exhaust pipe and MPG is only ~20 and I'm a light foot. The idle RPM varies a bit much moving around between 600-1100 RPM warm.
What I've done this year: It had a broken thermostat (replaced), failing alternator (replaced), failed starter (replaced), failing fuel pump (replaced with filter), recent oil change (has turned black after 800 miles). Most grounds around engine and firewall and 12 volt ignition contacts cleaned. The bat cables were cleaned and terminals coated. Ohm tested the injectors OK (all exactly the same, on spec) and they all "click" in operation. I replaced a bad coil (low ohms by 20% for both primary and 2nd) and changed the carbon fouled plugs (which were also ill-gapped by some hamhand), both of which worked for the roughness considerably. The plug wires all came up roses well under 10k ohms. The battery was a suspect for testing low so much when resting, but the alternator seems to have slowly fixed that (and problems come when system is charging OK). However, the main warm start and idle problem persists. (IMG: [URL] ....)
My next good guess: An obvious rich condition exists and, having eliminated quite a few other things, a sticking "Air Control Valve" seems the likely suspect (some call it an idle control valve but I'm going by the manual). My specific observations of this device: after a warm no start, I pulled the ACV electrical lead and she fired right up and idled well at 16-1800 RPM. I plugged it back in and she chugged and nearly died before idling ~800 RPM. As it idled normally, I pulled the rubber hose from the upstream air connection to the ACV and it chugged and died within 5 seconds. I noted the vacuum was very strong. Putting the hose on, it wouldn't restart till I removed the electrical lead again. The ACV circuit has continuity at the device but I haven't ohm tested it yet. My best diag is the mechanical part of the ACV is gummed up or worn out. The Haynes manual was almost no way in arriving at this conclusion. (IMG: [URL] ....)
Volvo :: 2007 S60R GT - Shrieking / Chirping Noise At Idle After Cold Start
I have been looking for a solution to a noise my 07 S60R GT has been making for about two months now. After a cold start there is a chriping/whistling noise that lasts a few minutes at idle. The noise will go away at idle but is constant under heavy load in any gear. The Volvo dealer told me it was the SNABB intake but the noise started well after I installed this with no noise initially. They said its not from sepentine belt or pulleys. It sounds as though its coming from the turbo area. Car still drives/pulls fine but makes shrieking / chirping / whistle when I get on it ( which is most of the time).
View 1 RepliesAzera TG (2006-11) :: Rough Idle - No Response When Depressed Gas Pedal
My car was parked for 5 days. When I next started it there was no response when I depressed the gas pedal--car remained in a rough idle. Had to restart the car three times before it worked but check engine light has not gone off.
View 3 Replies