Silverado :: 1993 Chevy RWD Lost Power And Acceleration
Feb 4, 2013
I have a 1993 Chevy Silverado rwd automatic 350 5.7. It died on me on the way to work this morning. It slowly lost power and acceleration. The lights and radio all worked. When I tried to restart, it tried to start but then just cranked like it had no fuel or spark.
I had it towed home and checked the following things. I removed the fuel filter, it is clear. I verified that the fuel pump was working by turn the key to the on position while the filter was off. Good stream of fuel. I verified that there was fuel to the TBI. Good spray while cranking. I verified that there was spark by pulling a plug out, connecting to the wire and cranking the engine. Spark seemed weak but there was spark. The front plugs were dry, but the rear plugs, especially #8 was very wet. I verified the timing by pulling the #1 plug, removing the distributor cap and checked the rotor position. I bumped the engine to get the #1 piston to the top of the cylinder and the rotor was point directly at the #1 plug wire. The cap, rotor, plugs and wires are only 1 month old.
I also tried to check the ignition coil by disconnecting the coil wire from coil, and slid the boot back to expose the contact. I held it just of the coil while the engine was cranked, but did not actually see a spark at the coil. I did not hear any arcing. I pulled another plug and checked for spark. Again i had spark. Just seems weak to me. I am on my way to the auto parts store to get a new coil.
View 3 Replies
Advertisement
I have a 1993 Chevy Silverado, 350, 2WD. It has a 4L60E transmission. I just started having a problem shifting from 1st to 2nd. When accelerating the RPM's go way up and won't shift until I let off the throttle. Then it shifts into all other gears normally.
If I accelerate slowly. it will shift into 2nd at about 16 MPH. It will then shift into all other gears normally. I have replaced the Throttle Position Sensor, flushed the transmission and replaced the filter and fluid. This made know change in performance.
I am now suspecting that it might be the 1-2 shift solenoid. The check engine light is not on and everything else works fine.
View 1 Replies
A friend has a 1993 4x4 Z71 automatic that has lost 2nd gear. He has drained the fluid and it does not smell burnt and color is fine. He does notice what seems like dust in it but it has no texture when try to feel the dust. The fluid did seem to have some sludge like gunk in bottom of container He drained it into.
View 1 Replies
I own a 2004 Silverado 1500. Nearly every time I drive, I loose temperature control on the driver's side after about 15 minutes of running the engine. The passenger's side seems to be working fine. I'm not sure if it is a bad rheostat on the driver's side or a bigger issue.
View 6 Replies
I have an 88 chevy K-1500 4x4 5.7L ... My truck lacks serious power, it idles rough, sometimes wont idle at all, sometimes Truck Idles fine. I have adjusted the timing to tdc, and 4 deg. both ways still runs like crap.. Sometimes I can keep it idleing, put it in rev. or drive, and it will die. I have no power and if I put my foot in it too much it will backfire. but will only backfires when in gear and press on the gas to put a load on the motor. I have replaced the: tps, map, egr, pcv, distributor, cap, ignition coil, rotor, plugs, wires, timing chain, both sprockets cam and crank, checked all hoses for leaks, replaced the injectors, the O2 sensor and have changed the intake gaskets. And am still having no luck...... I am bout to just drop an M80 in the gas tank and watch her burn..
View 14 Replies
My wife was driving the 1999 K3500 7.4 model ls crewcab truck home the other day and out of the blue it started running rough popping and back firing and lost power. It had a major tune up about 40,000 miles ago. It sometimes has a hard time cranking to start, but once it starts it idles really rough and pops and smells like it is running rich. I thought the distributor cap but it looks fine, could it be a sensor?
View 2 Replies
My left brake caliper locks up on me. I have replace it, the brakes , and the wheel bearings. when im driving down the highway and go between 45 -55 my front end shakes really bad and i start to lose power.
View 8 Replies
I have a 98 chevy truck that won't start. After it sits. It was starting after cycling the key a few times. But now it won't start. Could it be the pump? I hear it running.
Or could it be the regulator? It was running good after it started. No check engine light, no gas smell, and no rough idle.
View 6 Replies
My 1993 ford aerostar 3.0 is a great vehicle but recently its been killing me trying to figure out what the cause is. I'll start at the beginning. I had a job over the hill in Westwood Ca. Ran low on gas on the way home. Too low apparently. Since i refueled it has a really rough idle and no power under acceleration. After it gets warmed up i get a bad smell of gas and exhaust in the cab.
Now if i turn it off wait 15 min or 12 hours it will run ok for 2 min then back to hell. I has not stalled and i have replaced the fuel filter and a few months back i cleaned the Mass air flow sensor and replaced the TPS. I would love to take it to a mechanic but as i have been living in this old girl for the passed 6 months money is non-existent.
What to do. I have even tried disconnecting 1 at a time... the TPS, MAF, and the 02 sensor. No difference. There has been no check engine light until I tested by disconnecting TPS etc.
View 8 Replies
The cruise control on my 2002 Chevy 1/2 ton Silverado doesn't work. Went to boneyard and bought a module but it didn't fix my issue. Borrowed a multimeter and tested the cruise control module plugin. The only pin that came up with a incorrect reading was the first brake test. It's suppose to have 12 volts with brake pedal up but showed about 30, so I changed the brake light switch. Still no cruise control.
Since I have a high reading on the brake pin, do you think I have a wire issue there or would my problem be in the multi switch wires by the steering wheel?
View 2 Replies
I have a 92 chevy truck with a 350 engine that came out of a 93 chevy my problem is my module in the distributor keeps going bad when i spoke with the previous owner of the motor he told me that he had the same problem and advised me to change the distributor. So I took my distributor out of the original motor and put in but the problem still exist, also I have noticed that I have nearly twice the exhaust coming from the drivers side tail pipe as I do the passengers side.
View 1 Replies
On my 1999 Chevy Silverado Z71, a gurgling water sound is present everytime I accelerate. Are there any other Chevy owners that have had this same problem? If so, how was it resolved?
View 14 Replies
The issue I'm having is the A/C. When I got the truck the A/C was completely freezing. Recently however, the compressor was having issues not engaging and I fixed that by simply plugging the cord to the accumulator thing. . Now the compressor engages, but is not cooling really at all. It is an old truck and the compressor is a little worn from what I see maybe 2mm space when not engaged. I checked the levels of freon/coolant with a gauge and the amount is perfectly fine. Plus there seems to be no leaks.
View 1 Replies
I have a 98 Chevy truck with a 4L60E. It has no second gear. I was sitting in park for about 10 minutes with the engine running, then put it in drive and it never shifted into second. It felt like it went straight to 3rd. I played with it manually until I figured out I had reverse, 1st, 3rd, 4th and torque converter lockup, just no second gear. My acceleration rate was medium and when I reach about 27-28 mph it would shift from 1st into 3rd. It has 230K on it so I rebuilt it with all the typical parts - frictions, steels, band, sun shell etc., still no second. I then pulled the pan back off and replaced the spacer plate and put in a shift kit. While I had it down I put a corvette servo in and did an air check. It worked fine. I could feel the band tighten.
Both the 1-2 and 2-3 solenoids checked good at 23 ohms. I swapped their positions to see if it would make a difference. I also checked to make sure the 1-2 accumulator piston wasn't stuck in its bore, the spring was new from the shift kit. It was fine. Put it back together...still no second gear. When I originally pulled the pan off for the rebuild, the pan was free of any debris and was very clean. I then drove it a couple of miles to a local transmission shop. They put their scan tool on it and drove it around the block. There were no codes and the ECM was calling for second gear. It doesn't sound mechanical since almost all the parts have been replaced, rebuilt or inspected that affect the 1-2 shift. It sounds electrical. Is there anything I have missed?
View 14 Replies
I picked up a very clean 2008 Silverado 2500 HD. W/60K miles. The vehicle has been very well cared for as I know the orignal owner. I have zero complaints with the truck other than an annoying front end clunking. Its very reminiscent to the intermediate shaft issues of my 2003 2500HD.
Basically when hitting very small road imperfections, I can feel/hear a clunking in the front suspension. I can also duplicate the issue by rocking the truck left to right with the steering wheel while going 20-30MPH. I figured, stabilizer links. I put the truck up in the air, & can't find a thing wrong. Links are tight as well as the ball joints & tie rod ends. Were these trucks know for a common clunk like this.
View 14 Replies
My dad's 1996 Chevy Silverado will not shift into hi gear. The truck starts up fine and he can drive it but for some reason it won't shift into hi gear. Him and I are clueless as to why it won't. He has a 1996 Chevy Silverado, 6.5 liter V-8 automatic transmission, and its a diesel. We really want to fix the truck ourselves so we are trying to avoid taking it to a shop.
View 2 Replies
I have a 1999 Chevy Silverado 1500 extended cab. Two nights in less than a week, my horn has went off in alarm mode. Is there another reason for this other than an attempted jimmying of the lock? I live in a decent neighborhood with lots of pole lighting. Someone told me the keyfob battery was dying but I don't have the fob.
View 1 Replies
I have a '99 Silverado 1500 with a 4.3L V-6 amd 188,000. It picked up a problem recently that's been stumping me. Occassionally, and for no reason I can sort out, it starts to shimmy badly. This behavior has come about at several speeds. Sometimes just cruising down the road at 35-45 it starts to shimmy and wobble and the steering wheel shakes as if a wheel is horribly out of balance. Other times this occurs at highway speeds - it's noticeable and alarming. The problem can last a long while; othertimes the symptoms disappear in a few seconds. The first time it happened I thought I had a flat or was about to lose a wheel - this is not a subtle problem.
I've checked several things and came up empty. No delamination in the tires and nothing out of round, but just to be sure I had the wheels balanced and rotated - the balance was spot on when checked. Alignment is good. Did those things, but the symptoms continued. The vehicle is high mileage so I put in on the lift and checked the front-end. The steering rack has a very slight amount of play and the hub bearings have a very small amount of play too - I'll get after those, but they're not causing this intermittent problem. Everything else is tight. Shocks are fine, brakes are fine, I checked the rear-end as well - everything is straight and true. Air pressure is set correctly. I checked the driveshaft for runout and play - that's not the problem. The truck has never been in an accident and nothing seems misaligned.
The truck drives like a new truck most of the time, then suddenly, on a smooth road, it starts wobbling around. I'm starting to believe the problem might lie under the hood. I had a problem some time back with misfiring and the truck bucking - this turned out to be a worn distributor. A new distributor, rotor and wiring solved that problem. But these symptoms are not similar - this is not a bucking problem; the entire vehicle starts to shimmy and wobble with the steering wheel vibrating back and forth. It's hard to tell, but I cannot detect any misfiring or rough running in the engine when these symptoms appear and I have no 'check engine' warnings.
Are there any engine/transmission/drivetrain related issues that could cause intermittent symptoms that feel like an out of balance condition? A few other facts:- I have noticed the truck is a little down on power lately- The fuel economy has dropped off - I used to do around 20, now I'm down to 16mph highway- (Very) slightly rough idle
View 5 Replies
I installed a set of brushed aluminum pedal about a month ago and now I feel that the car does not have the same power and acceleration like before! I mean if on 60mph cruising I want to accelerate to pass a car and push the pedal all the way up to the acceleration bottom the Trani only downshifts up to 3000 rpm and if I want pass quicker then push it all the way to the bottom then it shifts to 5000 rpm, in sport mode it is different and looks OK.
View 8 Replies
My problem is on wed I was driving my car,when I suddenly lost acceleration power, after pulling over to the side of the road I turned off the car and restarted it. However I still had the same problem with acceleration. After a while of trying to get the car to start I called a tow truck and got it towed to the dealer. When I got there they told me it was likely and issue with with a sensor on the gas pedal and the engine. At the dealership I started the car to show them the problem however the car drove perfectly and no engine light came on.
They told me it was most like what they said over the phone the sensors. However on xmas eve they called me and left a voicemail saying the rear cat had went out and taken out both rear exhaust manifolds and it would coast $3000 to fix. My question is how can all that happen without the checking engine light coming on in the car and the car showing no problems while i was driving it and how did they miss it when I had took the car in two weeks earlier for regular maintenance and to correct a drive belt issue due to it walking after I purchased a new drive belt and pulley.
View 20 Replies
Going up a hill, my engine started clacking and I lost acceleration power. (yes, I was in overdrive - which I now know I shouldn't have been). I immediately pulled off the road and into a gas station. Upon stopping, my oil pressure gague dropped to zero and my engine temp maxxed out. The temp was fine until I stopped. I let the engine cool off for an hour.
After listening to it for a few seconds, I was told that I had a problem they couldn't fix. We put a compression fix oil additive in it to see if that would work. It did raise the oil pressure when cold and when running with the RPMs up, but after running for a few minutes, the pressure would drop to zero on idle. At that point, they suggested that I shouldn't drive it anymore. I then rented a box truck and an auto trailer and trailed my truck the rest of the way.
I'm now in Fort Collins, Colorado and have a dilemma. I had a local mechanic look at the truck and he also agrees that I have a failed/failing rod bearing. (back of the engine near the firewall)
The question is to repair or abandon the vehicle. I'm not a mechanic and can't do the repair myself. It has 158K miles and has been meticulously maintained. Unless I also damaged something else, the rest of the truck is in good shape. Is rebuilding the engine possible or even worth it?
View 4 Replies
