Chevrolet - Suburban :: 1998 - Engine Hard To Start When Cold Outside Or After Rain
I have issues with engine starting when cold outside or after rain. This only happens when engine is cold and has not been started for a day or 2. Distributor cap does not have any condensation inside but does seem to corrode on contact points. Engine turns over fine, has fuel and spark. When this happens engine will not fire and after awhile it will start to fire and lock up when it fires then continue cranking. After repeated attempts it will start and run fine, can be shut off and start right back up with out any issues. It could take a few tries to a few hours of trying before running though. I'm leaning toward a distributor or timing issue. Am I on the right track? 98 Suburban K1500 5.7L ....
View 6 RepliesChevrolet - Suburban :: 1994 - Slower When Accelerating Cold Or Warm / Power Loss
I have a 94 Chevy Suburban C1500 with a 5.7L, 350 Engine. It has 235,000 miles on it. I purchased it about 4 years ago with 191,000 miles in very good condition and obviously well maintained. I have continued to maintain it well.
For the past few months it has begun to start a little slower that before and when accelerating cold or warm there is a spot where it looses power. It doesn't sputter or die it just looses power. I can press the accelerator farther and it will come back to life and do fine. After a 20 -30 minute drive if I park for a while, 20 - 30 minutes, when I start it up it dies. The only way to keep it running is to give it the gas and smooth it out at about 1500 rpm for 10 - 15 seconds. Then I can drive it with no problem most of the time though it still has the dead spot on acceleration.
There is a good spray pattern from the throttle body injectors. Plugs and wires are relatively new and plugs look good (AC Delco Rapidfire Platinum). When I turn on the ignition without going to start, the fuel pump builds pressure for 4 - 6 seconds. I haven't checked the fuel pressure yet and am considering investing in the rig to do so. I recently replaced the fuel filter but that didn't work.
The check engine light has not come on but many of the lights in the cluster are burned out and I haven't felt like going to the trouble to fix that so it is possible that the check engine bulb is bad.
Chevrolet - Colorado :: Won't Start At Times When Engine Is Warm
2006 chevy Colorado, 4 cyl engine, 50000 miles, at times when engine is warm it won't restart, when cold no problem, starter turns engine over OK, just won't start, wait 15--30 minutes starts OK... when engine is running it runs good..drives good, Chevy Dealer found no problems, I can find no fault codes when hooked up...
View 6 RepliesImpala - Chevrolet :: Shaking And Super Rough Start When Engine Warm
All the other cars I had before started better after being warmed up. My 2005 Impala starts perfect when cold first thing in morning but if I go somewhere quick and try to start-up the engine warm it fights it's self and car shakes and it's super rough start . So I figured it's the hot vapors in the engine so I Remove the oil cap and it starts better . What to do to start a warm engine .
View 9 RepliesChevrolet - 1500 :: 1996 Chevy Engine Hard To Start When Cold
I have a 1996 Chevy Cheyenne pickup with a fuel injected small block that has 50k miles. Earlier this summer the truck developed a problem where it is very hard to start when cold (after sitting overnight or after sitting for many hours on my flat driveway). When the engine is cold (say the first start of the day) I can only get it to start by giving small bursts of cranking power to the starter. That is, it won’t start if I hold the key in the cranking position but is more likely to start if I give it a short burst of cranking power (when I hold the key in “start” position) for a second or two.After the first start of the day, the engine runs fine and subsequent starts are quick and normal. The “Check Engine” light is not on and there are no trouble codes…. Other than hard starting there are no issues with engine performance.
View 2 RepliesSuburban :: 1999 - While Driving After Engine Warm-up Misfires On Cylinder 2 Under Slight Load
1999 Suburban 5.7L Vortec
Symptoms: While driving after engine warm-up the engine misfires on cylinder 2 under slight load (basically whenever maintaining speed, and slight acceleration) between 1500-3000 rpm's. Backfires through exhaust when this is happening. Misfire counts on Cyl. 2 collect rapidly and only a few on Cyl. 1 but no P0301.
History: Purchased vehicle with a blown engine (intake gasket leaked coolant into engine and was hydro-locked) with the intention of using it to pull a boat or camper but never did buy either one. Replaced the engine with a new Goodwrench engine and rebuilt the tranny figuring I would drive it till the body rusted off of it. I honestly never felt that the truck ran as strong as it should have with a brand new engine but just attributed it to being as big as a cruise ship. A couple of years later started receiving multiple codes (don't remember what they were at this time) found the distributor very corroded inside due to the ear on the distributor being broken off.
Replaced the distributor, cap,rotor,plugs and wires and fixed it. About a year later, only in the summer I would start to receive the P0302 sometimes, would not happen in the winter. Did the usual plug swap, wire swap, checked spark to rule out ignition with no change. After a while the catalytic converter failed (big surprise with a missing engine) and replaced it as well as both O2 sensors on the rear bank and one on the front bank. P0302 did not change. Last year the fuel pump failed so I replaced it. This April I took the truck on a road trip to visit relatives, about 80 miles out it started backfiring through the exhaust whenever I got over 70 mph and the CEL would flash. Finished the trip babying it the whole way but now it does this all the time when warm.
Repair attempts:
* Distributor, cap, rotor, wires, plugs. (Due to distributor failure mentioned above.)
* Fuel pump and filter. (Due to pump failure mentioned above.)
* Upgraded fuel injection spider. (Because of GM bulletin regarding misfires and multiple failures found on the internet.)
* Repeated valve and fuel system cleanings. (Grasping at straws.)
* Removed rear bank cylinder head and sent to machine shop, All checked good. (After ruling out ignition and fuel figured it had to mechanical. Compression was good, cylinder leak down test was good. The problem seems to be temperature related so thought maybe the exhaust guide was mis-manufactured too tight causing it to drag when warmed up.)
* Crank sensor with a used one from a u-pull it place, I got too much money wrapped up in this. (Found a reference to this repairing a similar problem on another vehicle.)
One final note: After replacing the fuel injection spider the truck ran extremely well, this only lasted a few days and the problem came back. After replacing the crank sensor the truck again ran extremely well, but only for 1-2 days. What is the connection between the injection spider and the cranks sensor? The only other thing that I can think of that would create a misfire on one cylinder only is the PCM but that gets misdiagnosed so much that I don't want to jump to it unless all other options have been checked out.
Chevrolet - Suburban :: 2005 - Won't Start When Cold?
I have an '05 Suburban with starting issues. When it's cold out (below 40 degrees) and you turn the key, all accessories come on but truck will not crank. It then seems like the power just cuts off.......dash lights go out but gauges are fixed in place and a couple of seconds later, I hear a strange buzzing noise from the dash area behind the radio and the gauges will then go to power off position. Then if I try to start it, there is nothing, no lights on dash, no starter engaging, no clicking of the relays, nothing. I tried, on a hunch to disconnect the ground lead from the battery. Had it off for 10 minutes or so, put the cable back on, tightened it down (wasn't loose to begin with) and it started right up first try in 20 degree weather. I had previously had the battery and alt checked and both were good.
View 3 RepliesJetta - Volkswagen :: 1996 GL Won't Start When Temp Start To Warm Up
I have a 1996 VW Jetta GL 4 cyl. 2.0L. When the temp. start to warm up the car won't start. I don't know if its the temp. outside, or in the cabin of the car. all the dash lights turn on, and accessories turn on. sometimes I hear a clicking noise, which I think is the sound of electricity going to the starter. I have replaced the starter, alternator, & battery. I had a family friend mechanic look at it for about 3 hrs. and he couldn't figure it out. I have a suspicion that it might be the ignition switch faulting out, but how would I know for sure with out taring apart the steering column?
View 6 RepliesChevrolet - Suburban :: Flutter In Engine When Accelerate
2007 Chevy Suburban, 65K milesLet me start by saying I took this into to the dealer and they found nothing!
When I accelerate, I get a "flutter" in the engine. The best description of this flutter is that the RPMs go down about 200 or 300. I think it feels like it is sluggish when it accelerates. It is most obvious during the 35 - 60 MPH range, but you also see it when cruising at 70 MPH.
I tried adding some fuel treatment and ran some 93 octane through it to see if it was the fuel injectors, with no change in the behavior. No error messages or engine light is on. Regular oil changes and services (60K service, every 3K miles for oil change). Driving behavior has changed since I bought a Prius 3 months ago. It used to be driven 40 miles / day (+ long trips) and now is driven about 40 miles / week (+ long trips).
Chevrolet - Suburban :: 2002 - Engine Stalls At 75 Mph
2002, Chevy, Suburban 1500, 4wd, 5.3L engine, 210,000 miles. Mass airflow sensor and both O2 sensors replaced last year in an effort to fix this problem. Original problem surfaced when the vehicle was shut down or running uphill and had about 1/2 tank of gas in hot weather. If stopped, the vehicle would not start until it had cooled down. Sometimes getting it onto level ground would be enough to get it running again. ( This accomplished by turning on the key and allowing the vehicle to roll back out of the parking place. ) If running down the road, getting to level ground after the stall, pulling to the shoulder and cooling the engine/waiting a few minutes and restarting the vehicle would work. This was before the above mentioned repairs.
Last weekend in 60 degree weather I was driving back from northern Michigan and as I headed up hill at 75 mph with the tank at 1/2 the vehicle did a high speed stall on me. Symptoms were: RPM showed 2000, but pushing down on the gas actually dropped the RPM no matter how feather-footed I was. This was tried several times. I turned on the 4 ways and moved toward the shoulder and at 50 mph finally got the thing to restart. The rest of the trip home was uneventful.
I had a 2001 Suburban with the same specs which did this same thing until a factory recall that got me a new fuel pump. I asked about the recall the last time my truck was in for service and they said it does not fall within the serial numbers for that recall. Fuel filter replaced about 9 months ago. Co-incidentally but not necessarily related is that my battery with less than 3 years of a 7 year warranty was draining itself in less than 2 days this last winter.
Start - Chevrolet - 1500 :: 1997 Suburban Won't Turn On After Parked For Few Days
My 1997 chevy suburban wouldn't start after being parked for a few days. the battery seemed to drained out so quickly and not because the lights were left on. The alternator was replaced less than two years ago. and the battery less than a year ago. I tried to jump start but it did now turn orver. What is the problem?
View 1 RepliesChevrolet - Suburban :: Engine Revs When Vehicle Stopped
My engine revs up no matter if the thing is hot or cold when I come to a stop at a red light, SOMETIMES. Other times it will idle at 100 and then wants to idle around 1000 and has idled as high as 1200. I've been told EGR, TPS, Idle Control Motor, or Intake gaskets. I did have a code 22 which occurred after a friend unplugged the TPS and reconnected it, but no other codes or check engine lights. Tuned engine 2 weeks ago, but problem still persists. Where do I start and what equipment do I need. I am a professional diesel tech, but not so much with gas.
View 3 RepliesChevrolet - Suburban :: 1997 - Diesel Engine Dies - Dashboard Lights Don't Come On
My '97 Chevy Suburban diesel dies at random times. Nothing seems to trigger it; it usually happens when I'm just driving along, minding my own business; not accelerating or decelerating, turning, stopping, etc. Has happened with the fuel tank at every level: full, half full and quarter tank. When it dies, the dashboard lights do NOT come on. When I turn the key "off" and back "on", the lights come on and the engine will crank fine, but won't start. Ten minutes later, it starts and everything is fine. It may not do it again for weeks, or it may do it again in 10 minutes.
This last time, the fuel tank was fairly low -- below a quarter tank -- and it seems to "buck" or "hesitate a little just before it died the first time. The dealer replaced the crankshaft position sensor and the fuel injector pump. When it started doing it again, they ran every diagnostic test they had and could find nothing wrong. Ran fine for a few weeks, then quit three times in 30 minutes. It's back there now.
Chevrolet - Suburban :: 2007 - Misfire After Working On Engine / SES Light Flashing While Driving
I replaced the oil pressure switch on an '07 Suburban 5.3L because the oil pressure was showing low once the engine warmed up. That did nothing, then I found out about that little filter/screen under the sensor. I intended to remove and clean the filter then reinstall it. While I was pulling it out, I dropped it back behind the engine and couldn't find it. I checked online and found a few people in other forums that said to just remove the screen as a "fix", so I left it out and put the sensor back in, just to get the vehicle drivable. It started right up and ran fine for me, parked it, and a after sitting for a few hours it started popping while driving with the SES light flashing on the drive home.
Code P0300 was set, no cylinder specific misfire codes were present. I checked the misfire data and cylinder #6 showed tens of thousands of misfires, #5 showed several hundred, but I think it was just picking them up from #6 since #5 is right after #6 in the firing order. I disabled each injector with a scan tool, all changed the idle except #6, it did absolutely nothing. #6 fuel injector had good pulse to it, I connected a fuel pressure gauge and put power/ground to injectors #6 and #4, both dropped the same fuel pressure. I did the "cylinder deactivation" test on the scan tool for the four cylinders that have it, they all did the exact same thing - the engine bogged way down for a couple seconds and then died. Is that normal? I can't say I've ever seen a V8 engine die before when running on 6 or 7 cylinders. I checked compression on cylinder #6, it showed very low, almost zero, but I tried it a few times and it would show just a little compression at times... valves staying shut? I'm thinking when I opened the pressure relief valve on the gauge and the piston was near the bottom of the cylinder may be when it showed some compression. I also switched the coil/wire/plug from #6 to other cylinders and the miss did not follow.
Could having that screen out cause this problem? Having the engine die when deactivating the cylinders makes me wonder if maybe it's commanding all four at the same time, although the test shows each cylinder being controlled separately. Using a MODIS, not a TechII. I just got done putting in a new filter/screen to see if it would make any difference, and of course it didn't.
Chevrolet - Suburban :: 2001 - Engine Severely Lacking In Torque For The First Minute Or So Of Driving
I have here a 2001 3/4 ton Suburban. It arrived last fall with 280K miles and a 6.0L V8 that was on its last leg (low to no oil pressure). I dropped in a 5.3L that I had handy, and had been happily driving it throughout the brutal Minnesota winter.
A couple months ago I noticed an issue developing. After a cold start, the engine would be severely lacking in torque for the first minute or so of driving. You could reach any RPM you wished, but the truck could barely accelerate. Once a minute or so had passed in this fashion, the issue would suddenly disappear... you'd be thrown back in your seat a bit if still attempting to accelerate, and the truck would take off. For the remainder of the trip, things would be fine.
Recently I went to drive the truck after it had sat for some weeks. It started fine, but the issue was now more persistent. When trying to accelerate, the gutlessness would continue for a good 15-20 seconds until finally and suddenly disappearing. Let off the gas, wait a moment, try to accelerate again, and it was the same thing all over again. Eventually I also noticed very obvious stumbling/missing when trying to get moving from a dead stop. Idle remained smooth.
The plugs and wires are only a few months old. The fuel filter is new. I checked for vacuum leaks (none that I could find). Fuel pressure is consistently around 50psi, even while the issue is happening.
The MIL was not on. I checked with my scantool, and found that P0101C was set, with P0101 pending. Visually examined the MAF harness and sensor; all looked fine. Swapped in a used working MAF; no change. (I suspect these codes may be due to the fact that I'm running a 5.3 with a stock, unmodified 6.0 PCM.)
My scantool is a Genisys running System 2.0. I'm by no means an expert with it, but I did know enough to try watching the miss counts while the symptom occurred. All cylinders seemed to be missing equally as much as the others, more or less.
Normally I'd be suspecting the fuel pump and/or associated wiring was going bad, but the pressure seems fine. What I might be missing?
Chevrolet - Suburban :: Squeal / Groan / Clicking Noise Coming From Right Front Of Engine When Accelerating
2003 Chevy suburban, 115K miles, accelerating I hear a squeal/groan/clicking noise coming from right front of engine. Did not happen this winter, started again in spring. Loses power if stay on accelerator. If let off and then reapply, it will momentarily go away. Appears to be only when air conditioning on. Bad AC or just the pulley?
View 1 RepliesChevrolet - Suburban :: 2001 - Constant ABS / Flashing Service Ride Control And Change Engine Oil Warning
I checked the cables, no corrosion and tight as a drum. I connected an OBD II computer to the plug under the dashboard and the computer replied that there were no trouble codes present. Is OBDII the proper code reader? none of these lights were on before I replaced the battery. now I have constant ABS, flashing Service ride control, change engine oil. The battery has not gone dead as of yet but the ampmeter is charging at about 16.5-17 volts. I disconnected the pos terminal while the vehicle was running and it continued to run even with the lights on.
View 2 RepliesChevrolet - 3500 :: 1996 - Won't Start Sometimes
I wait for the glow plug to stop before attempting to start. Then it's like Aaron Tippin sings, "sometimes she runs, sometimes she don't". It turns over fine. When it's running, it runs good. But most times it won't start. The fuel is being stopped somewhere. The in tank pump is working..I can hear it when I turn on the key. What else can I check?
View 5 RepliesImpala - Chevrolet :: 1996 - Won't Start / CEL On?
Recently the check engine light came on and coded out to the mass air flow sensor. I changed the sensor and cleared the fault code, but after doing so the car wouldn't start. After many failed attempts to start the motor, I disconnected the positive lead at the battery and reconnected it a few minutes later. The car started and ran smooth, however the check engine came back on and coded out to the mass air flow sensor again...
I let the car continue to idle and disconnected the lead at the sensor how the motor would react; it continued to run smooth....I then reinstalled the old air flow sensor and engine continued to run great...So with all this said, car runs great when check engine is on and code is not rest, however, car will not start upon clearing the code and resetting the light......is it safe to assume the computer is going bad and needs to be changed?