My 2000 Chevy Astro van started having problems whenever I accelerate, hesitating losing speed, and all I can possible tie it to is a new gas station where I filled up which said "May contain ethanol". I think the "service engine light" flashed on for a second but does not stay on.
Could bad gas or the ethanol be the problem? Would getting the problem codes read at a parts place work?
My 1990 Chevy Silverado with 5.0 liter, 45k miles has started a problem that the guys in my diesel repair shop don't know what to do. Last week it started to run rough, hesitating and lurching and not accelerating smoothly. It idles fine, or pretty well, but just doesn't run smoothly with any kind of acceleration. I drive it back and forth to work just 1.5 miles during the week. I took it on vacation a week before, so it's not from lack of long trips, it ran fine.
A guy at my diesel repair shop put it on his Genesis scope and all it would code is the O2 sensor showed lean, but we could see it switching from rich to lean and so on. I thought vacuum leak, but couldn't find one. PCV valve is good. EGR valve is ok. I changed the fuel filter yesterday and thought it ran a little better, but now has gone back to the rough running. What I can do myself to diagnose this? I do have all the tools and shop.
2003 astro - misses and chugs and clunks until i get up to 40 miles per hr...
View 6 RepliesMy wife drives a 1995 Chevy Astro. It has twice now stopped running with no warning. This happened while driving down the road. The headlights and engine cut out, but the turn signals, power windows, radio display, and such have power. Once it sits for a couple of hours, it starts right up and runs fine for weeks.
Is there an electrical connection of some kind between the fuel pump and the headlights? What might be going wrong?
I've taken it to a half dozen mechanics, none can diagnose the problem. From a cold start the engine idles well, but once it warms up and the fast idle setting shuts off, it begins to vibrate quite a bit. I rebuild that included an all new fuel injection system, new ignition parts (including distributor, replaced at a later date,) new wire to alternator (the old one had cracked insulation,) and a new mass airflow sensor (swapped in from a parts van-no effect.)
Basically everything is new except for the sensors (crank sensor, idle air, throttle position, etc.,) and the fuel filter and pump. I'm not getting any codes, and at least two mechanics said it had good fuel pressure. It FEELS like a vacuum problem on a carburetor vehicle, but I had the vacuum harness checked as well, and everything seems to be in order.
2001 F150 4.6. Just replaced all 4 oxygen sensors and spark plugs. Replaced rubber grommet on brake booster as it was leaking vacuum.
Truck is still running rough hesitating.
Pulled codes came up as PO141 oxygen sensor heater circuit. PO171 passenger side cylinders running lean. Fuel trim outside limits.
Since our weather has returned to the cold side......my truck has started bucking and hesitating at 45 mph with EOT @ 130 and ECT @ 140. I can gas on it and it will clear up/let off and it would start up again once it gets below 50 mph. Once the deltas reach 150+ it clears up completely. Its never done this until this week. FICM volts are steady @ 48V. What is causing this or what to look for?
View 2 RepliesMy 2005 1.6 is losing power now and then when I accelerate. gas mileage is getting worse. I don't want to replace any unnecessary parts. wires and plugs look good.. Codes 300, 301, 302, 303 ..
View 7 RepliesI'm a single mom and really dependent on my car for my job and my kids... I have a 1995 Chevy Camaro 6-cylinder, and I am having engine problems... in the mornings, my car starts fine, but if I drive more than a few minutes and turn it off, she doesn't want to start up again. It turns over just fine, but it sputters and refuses to stay started. After a couple of tries, I can get it going, I rev the engine, and a cloud of dark smoke (not blue and smells like gasoline) comes out. I also smell gas strongly when the engine idles after everything smooths out. Sparkplugs, fuel filter, oil, air filter, belts, hoses, all have been replaced recently, catalytic converter is only four years old, and car has 178,000 miles on it. What I may be dealing with? I'm also losing acceleration/power when I try to speed up...
View 14 RepliesI have a 2003 Tahoe that I love but is driving me crazy with a "Reduced Engine Power" message. I am driving along and suddenly it dings at me, the message center says "reduced engine power" and I am losing speed. It goes into a "limp mode" in which I cannot accelerate, it cannot pull itself up a hill, and the engine misses badly. I can pull over, shut it off for a couple of minutes and then start it up and run again just fine until it decides to do it again.
There seems to be no rhyme or reason, one day it did it 4 times w/n the first 20 miles, then ran 100 miles w/o doing it at all. I recently took it on a trip that normally takes me 1 1/2 hours, it took 2 1/4 hrs that day because I had to pull over so many times. I was having to stop every 3-4 miles by the time I got there. My usual mechanic has completely given up, told me to trade it. I have had it to another mechanic for over a month now, 3 times he has thought it was fixed, but it wasn't. One time, I didn't even make it the 5 miles to my house before it acted up again.
One other note on this: this past trip I made, I left early in the morning and my lights were flickering high/low. . . this went on for several miles. Finally my lights quit flickering, then I lost engine power, pulled over, shut it off. When I started it back up, the lights started flickering again. The cycle seemed to continue, once the lights would settle, the engine would lose power. I took it to a parts store and had the battery and alternator checked. They said both were fine. (Had never noticed the light thing before, but I can't think of a recent trip after dark.) How I can pass along to my mechanic?
I recently bought a 4.2L V6 2003 F150 with only 20,350 original miles. This car belonged to an older gent who barely used it, then passed on about 3 years ago, and truck sat around barely used by anyone. When I picked it up I ran some Seafoam through the first two gas tanks as it was occasionally running rough and losing power. Since then truck has been running incredibly smooth, but in the last few days it is getting harder to start. If I pumped it two or three times it would start OK, but today I have had to pump it while cranking it to get it to start. ( the pumping may have nothing to do with it starting)
I am replacing the fuel filter in the next couple of days, as any accumulated junk that was in the tank or lines is now probably in the filter, but it seems that a badly clogged filter would also give me some problems running, and it runs really smooth once it starts. I get a pressure gauge, (I understand the rails have a pressure test port) what pressures should I expect at what moments?
Turn key on :
Crank engine :
I am brand new to the F150 and trucks in general.
I got vw golf 2000 tdi , I never had a problem with it, the other day I was driving on high speed just about to over take my car slow dawn it was feel like there no turbo, in low gears is fine but if u go over 70 mph it won't go, but soon is u switch off the engine and start again it will come back to normal ??
View 18 RepliesI have a 1999 Chevy Suburban K1500 4 wheel drive. It has a 5.7 liter engine and has 360,000 miles. I recently had a fuel pump put in last year. It is now running sluggish when I accelerate it will not go. This happens after it seems to warm up about 15 minutes of driving. I just replaced the fuel filter thinking that it may have been plugged up but it is still running poorly. When I put the fuel pressure gauge on it, it read 61-62 during start up and then dropped down to 57-59 (pulsates rapidly) after I started it.
View 2 RepliesI have a 1992 F-150 straight 6. Several days ago it started running rough and losing power and the trans shifted hard.
I put my code reader on it this morning and it read codes 332 and 334 - Insufficient EGR flow detected and EGR closed valve voltage high...
I have looked for vacuum leaks and found nothing. Is it possible the EGR valve is stuck?
Well I just set the timing on my rebuilt chevy 5.7 1999 suburban. It still runs sluggish when I accelerate and idles nice when it'd parked. I rebuilt the whole part part of engine. This is what I did notice when I cleaned under the lower intake manifold where the fuel injectors plug in. Here is a attached picture.
View 1 RepliesMy car has been running great. It has 125,000 miles on it. A couple weeks ago I did a bunch of work. I changed the plugs, air filter, timing belt, ac belt, alt, belt, cooling flush, tranny flush and brakes. Everything was great until yesterday. I wanted to test the power so I was on the highway going up this long incline going relatively fast. As I get almost to the top of the hill, my car starts hesitating losing power and check engine light comes on. I make it off the exit and sputter to a commuter parking lot. I shut the car off, check under the car for leaks and check the fluids. Everything is ok. I start the car back up and its running fine again. I drive home then I drive to the parts store to have them check the codes. No codes found. He told me that the engine light needs to be on for them to find codes.
View 13 RepliesMy f-150 has an intermittent rough idle and consistently runs rough when you accelerate quickly. Vehicle is not throwing any codes?
View 3 RepliesI have a very weird thing going on with my car. It all started about 3 month ago. The car will not accelerate and it left me broke down on the side of the road. It will start but it will not move fwd. So i took it to a mechanic, he told me it was the ignition coils, so he replaced them with some used ones that he got from the car junk yard. It worked for a like 2 months. About a month ago its stared doing it again! So i thought that since the mechanic replaced the ignition coils last time with some used one, i out to try some new ones. so i went ahead and bought some new one and the spark plugs and replaced them, $100 later it still doing it.
Mind you that this time around, the car will take a bit to accelerate once i get enough speed the car will only go 70mph, then the car starts to feel like its going shut off but it doesn't. Also it feels like the car is being held back, and every now n again will have a little burst of energy. I also see the gas consumption its a bit faster, i guess since I'm pressing the gas pedal all the in but can not go more than 70mph.
2001 chevrolet astro van won't start, I have spark and fuel. compression ok.
View 8 Replieswe have a 1995 chevy astrovan. Some days it runs just fine and then others it cuts out repeatedly when we slow down or brake. It?s been to the mechanic a million times and he can?t find the problem?
View 8 RepliesThe air bag warning light is often, but not always, ON in my 1998 Chevy Astro. Unfortunately, it is ON whenever I seem to have a chance to bring it in for state inspection. My mechanic of many years has been unable to determine the cause.
(Note: An earlier problem with the battery draining was taken care of by turning the Dome Light button to the Off position and leaving it there permanently.)