I drive a 1993 Chevrolet 1500 v6, 2wd. I have changed every part I can think of related to the fuel system. When I try to accelerate, the engine hesitates, it gets louder, and my truck will jerk. Sometimes, however, it is responsive. Often times, it will be responsive for a few minutes and start to decelerate.
View 2 RepliesCar: 1993 Chevy C 1500 (2WD) manual transmission Background: The car sat unused in a garage for 2 weeks (no problems before this) the first drive after its break, the pickup almost felt like it was slipping and power was not getting to the wheels. The vibrating began the next day. The vibrating is very obvious and unpleasant under acceleration at approximately 2000 RPMs in any gear. Grease was injected via grease zerk into the center carrier bearing area and the vibrating was marginally better. Today the back end of the truck was lifted up and put into gear and brought up to 30 MPH. The pickup was then lowered and a test drive revealed that the vibrating was considerably diminished.
An inspection of the drive shaft reveals:no vibrating in neutral the U-joints are not loose or leaking; the drive shaft has 2 small dents which are countered on the opposite side by weights;the drive shaft will move up and down ~1 inch or less if pushed in bench press fashion near the carrier bearing;the drive shaft does not move in the direction of the length of the vehicle;the drive shaft will rotate freely 1/16th to 1/8th of a turn before it is stopped by the back of the transmission or the rear differential; no mud clods in wheel wells;new tires properly inflated.
1993 chevy silverardo ... There is a knocking noise coming from passenger side dash i turn the key on it starts tell maybe i get down the road, when i turn the truck off it knock for like 25 secs. I just got the truck didn't find out until I took it home.
View 8 RepliesMy truck will start and idle but when I engage it into a gear, whether it is drive or reverse, it will start to bog down and not respond to throttle. Sometimes the truck will stall other times it will just bog down then the rpms shoot up and the truck will run normal after. If the truck does die it will fire right up and have no issues and run great. Now whenever I stop and shutoff the truck the next time I start it up it will go through the exact same process. It doesn't matter how long the truck has been shut off. Could be a minute could be a day. Truck has 177k miles, in the last year it has given a code for camshaft sensor going bad and has been replaced twice. Have also had the catalytic converter and the O2 sensors replaced within the last 6 months. Not sure if this matters but was told my truck is California Emissions by the garage that replaced the cat.
View 3 Replies2010 Prius. There may be times when you attempt to accelerate from a stop on snow or ice where the throttle will not respond. The reason for this is that our hybrid vehicles have 100% of the electric engine's torque available at 0-1,500 RPM unlike our gas-only vehicles, where maximum torque is available around 4,000 rpm. If the Traction Control System detects wheel spin it will inhibit the throttle because if the tires were to spin and then suddenly gain traction, the torque would be so great that damage could occur to the transaxle.
View 19 RepliesAfter driving my car for about ~15 miles it bogs, throttle doesn't respond, if anything makes it worse. And then she dies. I've cleaned my MAF sensor and checked for spark, cleaned the connectors.
The only symptoms it seems to have is-when my A/C is on, the idle will jump from ~1000 RPMs to 700RPMs to 900RPMS etc. Its all over the place every few seconds.-bad gas mileage
My culprits right now are maybe -the fuel filter getting clogged up, -or the fuel pump overheating? (even with a full tank) -or my O2 sensors. Do O2's overheat? I feel like it could be that, given the horrible gas mileage I'm getting.
My Elantra has been doing this for a while: While running (idle, driving slow, driving fast, doesn't matter) the car will lose power and will not respond to the throttle. It does this a few times in a row usually and then starts running normally. When running normally it runs perfectly fine, nice smooth low idle and good acceleration.
I started by doing a basic tune up: plugs, wires, oil change, air filter. No change. I then swapped the throttle position sensor. No change. You can see the symptom on youtube here: [URL] ....
What could be causing this?
Recently on two occasions I pressed the accelerator clear to the floor with no response. After shifting into Park then back into Drive it drove normally for about a week. Now it has stalled out and was very stubborn to restart. Once running, the accelerator will sluggishly rev the engine while in Park, but in Drive, will not respond. TPS sensor or something else?
2004 6.0 Diesel, 75K miles, no mods, well maintained.
My 2010 HHR vent and hot/cool controls do not respond when turned. Only hot air will blow out the dash vents. This happened last summer, but returned to normal until now. How to repair this? AC light and compressor come on, but still only HOT air comes out.
View 6 RepliesI have a 2000 F350 7.3 with 308657 miles on it. After changing the trans fluid, filter and checking the center support bolts for proper torque I'm still having the same problem as before. When put in drive it doesn't seem to want to pull itself much until I throttle up to 1500rpm or so, then it grabs and goes. It acts similar in reverse but the rpms aren't as high. There was a coating of something inside the pan and on most of the parts along with the magnet being covered. What to look at to narrow down my problem?
View 4 RepliesJust acquired this car with 130k. The previous owner owned this car all throughout college and dumped an obscene amount of money into it for what it is. I have a stack of receipts and work orders several inches high that came with the car, with every single oil change nut and bolt this guy bought for it. It was sitting in his driveway for several months because couldn't get the thing running...it just stopped out of nowhere. He decided to part with it since he is working full time and has a wife and child to support.
The work that has been done from previous owner. All of this has been done in the past 2-4 years:
Fuel system: gas tank drained and cleaned out, fuel pump, fuel filter, fuel pressure regulator, new injectors.Ignition: distributor, distributor cap & rotor, spark plugs, spark plug wires. Coil is still original.Electrical: O2 sensor, ECM coolant temperature sensor, ECM (mom and pop shop replaced it with a junkyard unit from a different car, not 100% compatible with a 93 Excel).Engine: cylinder head rebuild, timing belt and components replaced.Misc: thermostat, coolant hoses, PCV valve, all vacuum hoses replaced, brand new exhaust from the converter back, converter has been hollowed out, new struts/shocks, tons of front end work, tires, MAF cleaned with appropriate cleaner, etc.
Here's what I have done:I replaced the throttle position sensor, replaced the air filter (it had a K&N that did not fit right), replaced the idle control servo, and also replaced the ECM with the correct one. Also replaced fuel filter, all fusible links, and the relay box for the fuel system. I've tested the TPS circuit extensively and it checks out both on the sensor side and ECM side. Also there is a TSB for a bad ground which would cause the TPS and motor position sensor circuits to mess up, but I have already checked them and they were fine.
Previous owner replaced a ton of parts, I can get the car to start and idle without much incident but as soon as you give it any throttle it gurgles pops and dies.
I just came across a deal on a 93 E350 motorhome for dirt cheap. It has a whine at 50 mph and believe its the rear end. The whine is under throttle not coast.
There is a tag on the axle housing that reads :
4:10 a diamond shape 2US AC
760553
Is this a Dana 60? Looks like a Dana.
I have a 93 F250 diesel 4X4 with the automatic, the transmission was rebuilt by a reputable shop les than 10000. miles ago, every few months it will act up, it will act like I put it in neutral then it slams back in gear, then it shifts very hard, sometimes it will not shift until i lift the throttle. Sometimes I can shut it off and when i start it again it will be back to normal, other times it will do this for a few days, then work fine for another month or two.
View 5 RepliesCarburetor: Autolite 4100
Fast Idle Speed: 1250 RPM
Curb Idle Speed: 600 RPM (At normal operating temperature)
When I cold start my truck, the fast idle speed holds the throttle at 1500 RPM. I will let it idle about 30 seconds or so, and then I will tap the gas to bring the idle down.
When I do this, the idle will immediately drop all the way down, and too low for a cold engine. The engine won't stall, but it will hover just below 500 RPM, which is a bit too low to idle smoothly.
But when the engine is at operating temperature, the idle speed is 600 RPM and the engine will happily idle smoothly.
Shouldn't there be an "in between" speed? When I tap the gas pedal at 1500 RPM to bring the idle down some, shouldn't the speed drop down a little lower, like 1000 RPM since the engine is still a bit cold?
If so, what do I need to adjust? The Autolite 4100 works PERFECTLY otherwise.
I have a 1993 corolla that runs fine once warm. The problem is a cold idle problem. When starting it cold, it dies unless you feather the throttle. I can keep it running by feathering the throttle until it warms up. Once warm it runs fine. If I let off of the throttle at all during the warmup period, it dies instantly. How does the choke work on these vehicles? Could it be a IACV problem? Anything else it could be?
View 5 RepliesI have a 97 chevy and the only way to start it is to jump the starter relay, not sure if it is the key switch ot the nuetral saftey switch.
View 2 RepliesI have a 1997 Chevy C1500 with about 85k miles on it. I had the breaks checked and replaced over a year ago and this problem is pretty recent. When I got the brakes done I had the pads replaced on the front disks and I had the back drum pads and some brake part replaced that was inside the drum. Looked like a little hydraulic piston of sorts (sorry, not to up on my car lingo here lol)
My issue is my ABS light comes on from time to time for no apparent reason at all (at least that I notice). I can be just sitting at a stop light and I will notice it comes on, stays on, then randomly will go off. The car seems to break fine, especially at higher speeds (30-70mph). On occasion however at low speeds (5-15mph) when coming to a some what sudden stop my brakes seem to skip? Kind of feels like a grinding feeling. No gravel or slick road, just plane ol pavement. I think this is the ABS system but Ive only ever driven one other car with ABS breaks that the I believe the ABS system activated while stopping on ice and it felt the exact same.
I have not noticed if the light comes on during these low speed stops, as I am just now putting all these pieces of a puzzle together to figure out if something is really wrong with my ABS system or if its just a sensor or something.
I have a 1997 Chevy C1500 with about 85k miles on it. I had the breaks checked and replaced over a year ago and this problem is pretty recent. When I got the brakes done I had the pads replaced on the front disks and I had the back drum pads and some brake part replaced that was inside the drum. Looked like a little hydraulic piston of sorts...
My issue is my ABS light comes on from time to time for no apparent reason at all (at least that I notice). I can be just sitting at a stop light and I will notice it comes on, stays on, then randomly will go off. The car seems to break fine, especially at higher speeds (30-70mph). On occasion however at low speeds (5-15mph) when coming to a some what sudden stop my brakes seem to skip? Kind of feels like a grinding feeling. No gravel or slick road, just plane ol pavement. I think this is the ABS system but Ive only ever driven one other car with ABS breaks that the I believe the ABS system activated while stopping on ice and it felt the exact same.
I have not noticed if the light comes on during these low speed stops, as I am just now putting all these pieces of a puzzle together to figure out if something is really wrong with my ABS system or if its just a sensor or something.
I would like to have some knowledge or information in case I have to take it to a mechanic to have it looked at. The last people (Just Breaks) I took it to really tried to screw me over. After they worked on it the Emergency break light was on and his fix was to just "unplug" the sensor. I said Heck no! Fix it! after three bleeds it tripped the sensor off. So I am a bit hesitant to have them looked at after that experience.
Trying to track down an air conditioning problem. Seems like a vacuum leak somewhere is screwing with my AC and shutting it down upon giving it any throttle (hills etc). Where should I look first or is there a certain area that is prone to leaks?...truck is a stock 1993 F-350 460/auto.
View 1 RepliesInfrequently (once every couple weeks) my 2002 Suburban won't start. The starter seems to work properly as the engine tries to turn over and even seems to initially start for a fraction of a second but then dies. If I wait 10 to 30 minutes it will usually start without a problem. This problem does not seem to be related to outside temp, recent use or car position. After dealing with this occasionally inconvenient problem for months I took the car to a service shop and was told that if they could not reproduce the problem that trying to fix it would be a wild goose chase. When the problem occurred again I took it to another shop who kept the car for 3-4 days but was unable to reproduce the problem.
They suggested that there was a problem with the fuel pump but did not want to replace it unless they were sure that was the problem. I then spoke to the Chevy dealership shop who also said it was most likely the fuel pump. In my frustration dealing with this problem I took the car back to my local shop and ask them to replace the fuel pump ($800). Unfortunately, the intermittent problem has persisted and I'm not sure what to do next. I did have an after market remote ignition added a number of years ago and took it back to them to see if this could be related and they said no way. I have also wondered about the security system being a problem in that my rear hatch cargo door does not lock even though the other doors lock normally.
1992 WT pick up 263,000 miles had new head gasket installed valves lapped and tune up it was doing it before and does get better when truck warms up, but still can hesitate at times. When cold you have to feather gas pedal to truck accelerating, you can hear truck motor pop through throttle body but will continue to speed up.
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