have a 98 rodeo, with a V6 & Auto trans. have an intermittent problem - as I am driving engine will occasionally drop to idle speed and then pick back up to driving speed. Engine keeps running smoothly, just at idle speed.
CEL does not come on / no codes
Replaced Throttle Position Sensor - and thought I had found the problem, but since it is so random, it just didn't happen again for 1 1/2 weeks.
I recently had intake manifold gaskets replaced in my 98 gmc sierra 4x4 pickup 5.7 . The day I drove it home from the shop it ran fine, even day after but the next day I noticed it seem to idle a little rough and even at normal driving, sometimes seems worse than others. No service engine light has yet to come on. Could there be vacuum leak, trash in intake or bad wires and plugs. Plugs, wires, rotor button and distributor cap are only year and half old.
View 1 Replies1998 Explorer 4L 6Cyl 4WD 5 Speed Auto
This engine unexpectedly surges from idle up to as much as 3 or 4 thousand RPM. It can be frightening. The IAC valve was buzzing loudly so we changed it out a couple of times with wreckers parts. With the third replacement valve in there, it hasn't surged yet but we are very leery to drive it for fear of uncontrolled acceleration while in heavy traffic. Is this a known problem or recall with these vehicles. I think it is ridiculous that the design would allow such a dangerous condition!
First & main issue: I throttle on, the RPMs jump, speed drops. I think I dealt w/ this before in my old Toyota pickup by replacing the clutch master cylinder. Is that right?
Secondly, I don't know if the engine of this lil car has been rebuilt, but the smoke from under the hood has been alarming. It smells of oil, and I've seen some spots that appear to have leaking oil dropping onto the exhaust, but the smoke keeps coming from various spots.
I really enjoy driving this lil car, it's my first Subaru and my first wagon, but if the trouble is just now starting for me, at over 210,000 miles... I've replaced a few things, but I've never owned a newer(ish) vehicle (except a Harley), and come to expect to do work every once in awhile. I'm fairly regular w/ preventative maintenance, but not strict about when to change fluids or flush things (i.e. transmission or radiator). Maybe I should just sell this one and move on.
I also hit a deer the other day going pretty fast and fortunately only busted out the passenger side head light, fog light, and blinker. The other day being over a month ago. I just don't drive at night and try to avoid right turns. Any thoughts on where to get cheap replacement parts? I can't seem to find anywhere that'll sell me those plastic bits for under a few hundred dollars.. strange considering a necessary part like a master cylinder is only $40..
1998 Honda Civic EX. This has been a great car and have got a ton of good miles on it. The problem that I am having now is with the temperature gauge. The measurement is completely all over the place while driving. While moving around town, the gauge shows the temperature VERY hot. As soon as I reach a consistent speed, the temperature drops back to normal (moves very erratically!). The gauge seems to get even hotter while idling. Another issue (may or may not be related) is the heat coming out of the vents is only working while the car is in motion. While stopped, it pumps out cold air. The temperature immediately changes when I get going again. Both problems seem to be getting worse. The car has coolant, and all other levels of fluids are normal.
View 14 RepliesMy son owns a 2000 BMW 328i... sporadically, and without warning, the motor will speed up at idle, going from 600 rpm to 1200 rpm, then down to 700 rpm, then back to 600 rpm. This happens intermittently, when the motor is warmed up...
View 3 RepliesRecently it feels like the transmission is 'hunting' drops a gear, picks up a gear when driving constant speed on flat roads. 2.0T with tiptronic. Additionally, very intermittent, the car will get a shimmy around 48-50 mph. feels more transmission related and it is not the tires since it is an intermittent issue.
View 3 RepliesOn my 2001 Prius, while driving down the road the red triangle comes on and the ICE drops down to idle and the car slows down to 29mph. If I floor the gas peddle the car may or may not pick up speed slowly but if I let off of the gas peddle the least little bit it will slow down to 29mph. If I stop and turn the car off and then back on the triangle is still there but the car runs fine. After turning the car on and off 2 or 3 times the triangle disappears.
View 2 RepliesMy 98 Chrysler sebring has a fast idle at about 1500, occasionally dies but will restart, and has been making the garage smell like gas. Can't seem to figure out the problem.
View 4 RepliesJust noticed the other day when when rolling up or down the window on my 2010 corolla, when the window reaches the upper / lower stop and the switch is held down, the idle speed drops and the engine stumbles. Alternator ?
View 6 RepliesI have a 1997 Toyota Hilux (unleaded, not diesel) and I'm looking for input as she keeps breaking down but no one is able to figure out the problem. While in gear and driving, the gas stops engaging and the speed slowly drops. The car stutters while slowing down but then if I switch gears or rev the engine it will stop. After some time this continues to happen more frequently (at all speeds) until the car eventually stops and dies. Try to restart and the engine will turn over but not start. After sitting for a night or so, though, she starts up and runs just fine. Thus no mechanics have been able to solve the issue!
Could be a fuel problem as the exhaust pipe makes a banging sound when this happens, but it could also be electrical.
1999 Rodeo LS V6 3.2L MT 277,000 miles. Over the past few months, I've been experiencing brake "chatter" occasionally at a stop.
It seems to happen mostly on hot days, and within the first few miles of driving, but I haven't recorded that data in any detail. It's right when I'm getting to a complete stop. It's a chatter that shakes the car when applying the brakes.
I thought at first that it seemed to be coming from the rear, but sometimes it feels like it may be at the front, or maybe it's happening at both.
I pulled the rear shoes and front pads to check the pads, shoes, rotors, and drums but found nothing. I did have a frozen bolt (pin) on one of the front brake calipers, but I fixed that and it still happens, but only occasionally. Some days it doesn't happen at all, and on other days it happens a few times.
The stuck caliper pin wasn't binding the caliper, I just couldn't get the pin out, but soaking the threads in liquid wrench, tapping it, and applying a little leverage freed it up. Before that I could easily spin the disc by hand.
It has never happened in the morning, but seems to happen mostly around mid day and early evening and mostly when the day has been especially hot, which seems strange, but that's how it's been.
It isn't the same feeling as the ABS being applied in a high speed slippery situation, but it is kind of at that frequency.
It feels like the pads or shoes are chattering on the braking surface, but neither of the pads, shoes, rotors, or drums show any signs.
If maybe this is a typical symptom of a master cylinder going out? That is a central common point for all brakes. It's a 1999 with 277K miles on it and the master cylinder is original, so.....
My 2005 Hyundai Elantra GLS has had 0 problems. It has about 132K on it, but it's still awesome.
I was stuck in some nasty traffic the other day in 95 degree NC weather, and was idling for about 15 minutes with the AC on. Out of nowhere, it felt like my AC got warm and I saw my coolant temp gauge spike from just under midway to 3/4 of the way. Unsettling.
As soon as I got on the gas and drove for about 5-10 seconds, it dropped precipitously back to normal. I was able to recreate this behavior once I got home. Normal driving results in normal temperature. Both fans appear to running.
I have a Mazda 626 (V6) with about 150K miles and a funny engine racing problem. It occurs only when I'm going highway speeds (for me, 70MPH) and the car has been running for about 15 minutes. The engine will race, then chug and RPMs will drop down again, then it will race, etc. If I slow down, it will stop racing, but often start again as soon as I put my foot back on the gas pedal. If I don't get on the highway (running 60MPH and under), the car is completely fine.
I've taken it to my mechanic twice; the first time had the fuel filter replaced, the second time got new spark plugs, but it's still doing it. What else it might be?
My 2000 B5 1.8t began getting the Low Oil Pressure warning light over the winter, and has gotten progressively worse. I added a mechanical oil pressure gauge and I'm seeing about 20 psi on a cold engine at idle. If I rev to ~2500 the pressure DROPS to between 5 and 10 (and triggers the STOP! light).
I tried a bottle of autoRX, but probably too late- I could only run about 200 miles before the STOP! light wouldn't allow me to get out of the driveway.
What might cause the pressure to DROP as engine speed increases? a Clogged screen or worn pump possibly? It would be nice if it was something I could correct without pulling the engine (but I'm not expecting that).
How to go about fixing my 1987 AMC eagle. I recently just purchased the service manual and am trying to figure out what I should repair first. I noticed a few weeks ago my car wouldn't idle in the cold.After bringing it to the shop multiple times it still does not run right. In fact, it seems to have gotten worse and has even died while going around 45 mph. Once it does die I find it very difficult to start. I have noticed some bad smells while trying to start it again sometimes gas..sometimes almost a burning rubber smell. (The belts are still in tact) Once it starts again it acts much like it had gotten flooded.
The motor seems to be fine and sounds good when running at proper temp. Recently, it will even die when the engine is all warmed up.Often when I get back in the car after driving it (while engine is still warm) I can turn it over almost instantaneously it doesn't necessarily sound good though. I noticed before all of this began that it would putter when going down a steep hill (or letting off of gas). Do I need to rebuild the carburetor ? Could it be as simple as a bad pcv valve? I have already put in 600+ into fixing this and no results. I am pretty convinced it some sort of fuel issue. I am also concerned the choke might be sticking and needs adjusting.
I brought it into the shop and they tightened the timing belt and secured some loose battery cables. They also said I needed to replace the battery which I then did. This did nothing to improve the how well my car ran. I brought it back and they replaced the distributor cap and adjusted the timing which apparently was way off. This did improve the performance of the vehicle but did not stop it from dying.
When I turn the A/C on in my 1994 celica gt 2.2 engine the idle drops and will die,
View 4 Replies1998 saturn SL2 idle speed changes low, high, back to low. Some times the car dies, can happen any time a few times in traffic. Once the engines dies the idle stays low for 5 minutes, then the problem goes away for a while (a week). You never know when it will happen.
View 3 RepliesI own Camry 2008, 4 cyl, 2AZFE engine, 2400cc.
I recently, started facing strange issues,
No matter whether engine is stone cold or oven hot, it does not idle where it used to be (2 weeks ago). The car idles at ~800 RPM and the rpm suddenly drops to ~700 and engine flushes in more fuel to rev it up to 1100 rpm. Will take another 10 - 12 sec to reach ~700 rpm and the same story continues.
This however, sometimes go away, in Neutral. Once I put it in Reverse the problem becomes worse with RPM dropping every other second, as if the current in the coils is failing.
All this fuss continues, even when car is at 30 mph. However beyond 30 mph I feel nothing.
Services done in last 2 weeks:
1. Throttle body clean-- complete removal of all the gunk.
2. PCV valve changed from toyota dealer.
3. Mass airflow sensor cleaned.
4. Spark Plugs changed with new Iridium plugs from toyota dealer.
5. New Ignition Coils.
Nothing solved the idle problem - missing in the car. The mechanic convinced me that Head gasket is blown. He was indeed right as the Head Gasket had crack b/w cyl 2 and cyl 3. It was changed and car was much better. But now I am again facing issues.
A few days ago my 98 C1500 started having what I can only imagine is some type of torque converter issue. While driving at a constant speed the RPM will surge by about 500-600. This surge does not coincide with any type of acceleration, it's more like the converter is letting go and the RPM's just rise and fall back down. The fluctuations also seem to stop after about 15 minutes of normal driving. I have had no real noticeable transmission issues. At first i assumed it was my tranny fluid just breaking down so to get me home I used a bottle of Lucas.
The bottle seemed to do the trick for only a couple of days and now the problem is back...no better, no worse. The only difference I have noticed is that before the addition of the Lucas my fluid looked perfect and now it seems there is a bit of varnish. No smell, nothing seems burnt, just a little dirty. I haven't changed the tranny fluid for about 70k and the truck now has roughly 160K on it. My concern is that if I do change it the transmission will crap completely and I'll be on the hook for a rebuild.
I have a 2.7L flex fuel Dodge Stratus with 120K+ miles on it and a problem local mechanics and the Dodge dealership cannot seem to locate. When the engine is hot, and only when it's hot, the car will jerk suddenly while driving for a split second, then resume normal operations. It feels almost like you hit something and is scaring the bejeesus out of my wife. It also sometimes stalls out when at a light after sitting at idle for a few seconds. It idles down from 600 RPM like the air conditioning compressor is cutting on and then dies completely.
The car shows no error codes and the check engine light does not come on when this happens. I have replaced the spark plugs, and the transmission solenoid, which is what the Dodge dealer said "fixed" the car for almost $900, and it did it again on the way home from the dealership. My next idea was to change the fuel filter, or maybe the cam position sensor or timing belt or chain. I wonder if I am just trowing money down a hole at this point though, since Kelly Blue Book on this car is under 2K anyway.