Why does my Chevy Silverado turn over but not fire?

145 people found this helpful. Have a 99 Chevrolet 4×4 Silverado with 5.0 it was hot wired by previous owner. It did crank but replaced the steering wheel column with new wires and now it will turn over but won’t start. The fuel pump is connected directly to the battery.

Why does my Chevy Silverado engine not start?

Hey guys, 05 chevy silverado 4.3 cranks but won’t start. Getting fuel. Fairly new cap rotor, wires and ac Delco plugs. Removed cap to check for anything out of the ordinary. All looks good. Replaced crank sensor. Check spark at plugs, seems ok but not that bright. Still crank and won’t start, sometimes when cranking engine will try to but nothing.

Can a Chevy C / K 1500 engine not start?

Chevrolet C/K 1500 Questions – truck will not start, engine turns, but does not fire at all. – CarGurus truck will not start, engine turns, but does not fire at all. other computer-related things that could be interfering?

What should I do if my Chevy truck wont start?

Truck tries to turn over but wont fire. Replaced cap and rotor just this afternoon and it still will not start. helpful? Please use the following link to ask this as a new question. Include all information about the vehicle and what it did prior to this problem.

What to do if your Chevy Silverado has no spark?

Check the spark plugs individually if you are not able to turn on your engine all of the way. Remove each of the coil packs to reveal the spark plugs, then remove each of the spark plugs to inspect their connections.

What’s the problem with my GMC Sierra truck?

When I turn the key it cranks for about 1/4 second then nothing . None of the gauges or power locks and windows work . The battery is fine . Last night while driving all the gauges quit working and the a/c compressor kicked off , but the truck still ran fine .

Why does my GM 4.3L engine not start?

No Start Condition Basics There are three very basic components that the engine, in your GM vehicle, needs to start and they are: Air, Fuel and Spark. When your 4.3L, 5.0L or 5.7L GM vehicle cranks but does not start, it’s because one of these components is missing from the mix.

What kind of truck won’t start or fire?

I have a 1997 Chevy Z71 just put new trans in drove for about 20 miles and the truck just died………Replaced fuel pump, Fuel relay and found that the fuel fuzz blows every time I turn key on ???? 24 people found this helpful. 22 people found this helpful.

What causes an ignition coil to misfire in a car?

The most common problem when it comes to misfires is the ignition coil. Some vehicles have a separate ignition coil on each spark plug, while some cars have one coil with a sparking cable to each spark plug. Older cars have a distributor and, in some cases, also an ignition coil.

What was the problem with my Chevy c1500?

Thanks Itâ€™s also got the new cap and rotor lol Replace oil pressure switch – (sending unit). You are the f***in man pushrod. The oil pressure switch was the problem. Thank you for sharing your knowledge and experience. you did change the ignition control module.cranks over but no start,correct.

Why are the cranks on my 2006 Chevy Silverado not working?

SOLVED: 2006 chevy silverado cranks but wont start. – Fixya 2006 chevy silverado cranks but wont start. Towed to repair shop. Diagnostics said it was electrical. Replaced a #7 20 amp fuse. Kept at shop for 3 days. Started ok.

Why is there no pressure on the fuel rail?

If the pressure at the exit side of the fuel filter is normal and yet the pressure on the fuel rail is essentially zero, it’s possible the fuel pressure regulator has failed wide open, essentially preventing sufficient pressure from building.

Why does my car not start at the rail?

I have no fuel preserver at the rail but got great fuel pressure at the fuel filter . This all started while I was driving and when I went to take off from the stop light the car just shut off and won’t start up it cranks but won’t fire up .

Do you need to remove fuse panel on Chevy truck?

You may or may not need to remove the fuse panel depending on your model and year of Chevy truck. Plug the OBD scan tool plug into the OBD port. Turn the ignition key to the “II” position and read the OBD scan tool screen display.

What causes an intake back fire in a car?

If the check engine or service engine soon light in on scan the computer for trouble codes. This will help locate the system that is having a problem and needs repair. An intake back-fire explosion can be caused by the fuel air mixture being to lean when the engine is demanding power.

When did my 95 TBI Chevy stop running?

Timeline and service related incidents— Little over a year ago, it quit a couple times—I mean locked down like the key was switched off. My local indie tech replaced the distributor (O’Reilly’s).

When does a Silverado 2500HD won’t start?

Ran like a champ from June to November.. The minute the cold rainy weather came, have now had 5 times the truck completely dead, no start, no click, no fuel pump, Nothing. Couple of times, turn the key, put the truck in drive, back in to park, turn the key off, turn the key back on, truck starts up.

Can a bad fuel distributor cause a truck to not start?

If you have rpm signal crank sensor is good. Yes they have a fuel distributor that’s a problem most times plastic fuel lines will crack. But it would still fire up and run bad. If it has a bad PCM a scan tool most times will not communicate with it.

What to do if your Chevy Silverado won’t start?

Try a bunch of times (taking key out) or just turning off and try to start nothing then all of a sudden it starts like nothing ever happened.New battery installed also and checked it and its good. At times it will not even turnover or try to start . Sometimes it will pull my battery down over night .

Why does my Chevy Silverado not have a spark?

Your ignition system contains many components, such as spark plugs, ignition coils, and fuel injectors, all of which work in tandem to initially start your engine. If your Silverado’s engine is not sparking when you engage the ignition, you may be having issues with the spark plugs or ignition coils.

How to fix a 2004 Chevy Silverado problem?

No one has added a helpful site for this 2004 Silverado problem yet. Be the first! Read reviews of repair shops in your area. Enter your zip code: Search CarComplaints.com for these popular complaint phrases…

What makes a GM ignition coil spark away?

This Triggering Signal is known as the IC (Ignition Control) Signal in the GM service literature. The ignition control module now starts to open and close the primary current circuit of the ignition coil and as you may already be aware, it’s this opening and closing action that makes the ignition coil spark away.

Is the ignition switch on my Chevy Silverado bad?

Had a Ford with a bad ignition switch. To test, put 12v battery power to any power wire of the engine harness (MAF, etc) Mine was getting power at “crank” and would start but then die as soon letting off crank position of switch. (so the “run” terminal must be bad on the ignition switch) 1 people found this helpful.

Why does my Chevy Silverado 1500 not start?

To test, put 12v battery power to any power wire of the engine harness (MAF, etc) Mine was getting power at “crank” and would start but then die as soon letting off crank position of switch. (so the “run” terminal must be bad on the ignition switch) 1 people found this helpful. Have truck same issues Anyone figure it out?

How to determine if a 2000 Silverado has a bad ignition coil?

How to Determine if a 2000 Silverado Has a Bad Ignition Coil 1 Look over the clamps on the battery cables and make sure they are clean and tight around the terminals. 2 Disconnect the battery cables and connect a load tester to the battery. 3 Open the fuse box and inspect all of the fuses related to the ignition system.

What causes ignition coil to fail ignition test?

If all the ignition coils pass the test but you still have ignition problems, the source is likely the a spark plug or fuel injector. When disconnecting or connecting any cables to/from a battery (as in Step 2), always disconnect the negative cable first and connect the positive cable first.

Can a bad cop coil cause a misfire?

Because anything from a BAD COP Coil to low engine compression can cause a misfire. Well, troubleshooting and solving a misfire doesn’t have to be hard. Armed with the knowledge of what can cause a misfire, rough idle condition and a specific testing strategy, you can easily find out what component is the one that has failed.

What’s the fuel pressure on my Silverado Sierra?

When it is running I get about 46 48 psi. Now when I take the vaccume line off the fuel pressure regulator i get 58 psi. Could the regulator be bad or do you guys think the pump is still bad/cause of the low psi. (no gas came out of the regulator) Re: Cranks but wont start. Fuel problem?

What causes a GM truck engine to misfire?

It’s when one of these three (air, fuel or spark) are missing from the mix that the engine in your GM pickup, van or SUV starts to misbehave and misfire.

I have a 2005 Chevy Silverado 1500 2 wheel drive 4.3L V6. I recently replaced the fuel pump because the truck would not start. Replacing the pump fixed the problem, but now its doing the same two mouths later. Cranks but will not start. Yesterday I left for work the truck started and ran for about four miles and then it just quit.

What causes an engine to turn over but not start?

If when you turn the key the engine turns over normally but will not start, there can be any number of reasons for this problem. Some basic checks will need to be done to diagnose this problem. 1. Do you have fuel pressure. Some cause of low or no fuel pressure are a plugged fuel filter, faulty pump relay, blown fuse, bad fuel pump.

Why does my Buick LeSabre engine not start?

04 Buick lesabre turns over but will not start..fuel pump is working..there is fire coming the coil packs..though it does sound like the timing is or has jumped.. Well, all an engine needs to start is fuel pressure, spark, injector pulse and compression.

What causes a GMC truck to turn over but not start?

If the engine starts up normally after doing that, it means that fuel pressure is bleeding off and the fuel pump needs to prime the lines before it can start. It can bleed off from one of two places. 1. Fuel pressure regulator has an internal leak, and fuel is bleeding off back to the tank though the return line. 2.

What’s the problem with the Chevy 305 engine?

The primary problem with the Chevrolet 305 engine is the narrow 3.736 bore, which results in insufficient airflow compared to a larger block.

Why does my Chevy truck backfire when I hit the gas?

Its sputtering, backfiring, misfiring, in the low RPM band (below 2k) hit the gas and it upshifts and clears up. I also noticed its idleing rough. So, leaky-cracked manifold?

What causes a 1994 Chevy C / K 1500 to bog down?

– CarGurus 1994 Chevy C1500 5.7 bogs/backfires when I give it gas. My truck bogs down (and tries to die) when I give it gas to accelerate off of a stop. There is often a backfire or two when this happens. Pumping the gas does not help. I basically have to crawl through any intersection until it picks up a bit of speed from idle. The truck

Why is the Chevy 305 a bad car?

The eight cylinder Chevrolet 305 is poorly regarded because of poor factory performance, especially when compared to Chevy’s larger 350 engine. While General Motors had to make some compromises in the initial design, the result is an engine that older car owners can tune to a “sweet spot” between horsepower and fuel efficiency.

What’s the misfire code on a 1998 Vortec?

Can someone please help with what I should check next, I have a 1998 Chevy K1500 5.7 Vortec with a misfire, P0300 code for 3 months. runs a little rough, while driving under normal conditions it sputters, hesitates, and also will backfire, under heavy acceleration no noticeable skip, no sputters, and does not hesitate or backfire.

What causes a Chevy 350 to backfire when idle?

If a main vacuum hose such as the power brake booster feed line has broken or failing off it will cause a lean backfire due to the additional air allowed into the engine intake manifold. This problem will be accompanied by high or low engine idle and a harder to push brake pedal than normal.

What causes a fuel intake back fire explosion?

An intake back-fire explosion can be caused by the fuel air mixture being to lean when the engine is demanding power. Every internal combustion engine runs on a mixture of 14 to 1 which is fourteen parts air to one part fuel. Proper fuel pressure is needed to atomize the fuel correctly when it leaves the fuel injector to complete the burn process.

What is the trouble code on a Chevy Silverado?

P0307 is a fairly common trouble code with the Chevy Silverado. It’s and OBD2 code and means that a misfire has been detected in the 7th cylinder in the firing order. You should only be seeing this code if you have an engine with at least 7 cylinders.

What happens if you misfire the cylinder 7 on a Silverado?

It also can cost money to ignore it, since driving with a misfire can damage the Silverado’s catalytic converter. The engine is also not firing all of the fuel, so raw fuel is also passing through cylinder seven into the exhaust. Mileage may suffer as well when your Silverado has P0307 as well.

Why do I need to turn off PassLock on my Chevy?

People this is happening with many models of Chevy and even Hummers. It is that Passlock needs to be relearned. Key turned on then try to start but don’t let it, just crank it.

What to do if your Chevy 1500 won’t start?

The passlock sensor voltage reading has changed & you can relearn it to the PCM & you can start the truck again. To relearn, turn the ignition key to the on position for 3 10 minute cycles, turning the key to the off position for 5 seconds after each 10 minute learn.

What’s the problem with my 1998 Chevy Venture?

1998 chevy venture, cut off yesterday while i was at a stop light and will not start back. It turns over but wont start. what is wrong. Im having similar problem Melissa I have replaced ALTETNATOR battery fuel pump all that goes wit them IM HAVING NEW STARTER INSTALLED as well as wat goes wit it..

How can I tell if my ignition coil is on fire?

Have someone crank the engine and observe the center electrode of the plug — if there’s sufficient voltage reaching the plug, you should see a bright blue spark jump across the gap of the electrode every time that cylinder fires. If you see no spark, the coil is a good thing to suspect next.

Why does my 1990 Chevy Silverado not start?

My 90 would not start if the vacuum line to the MAP sensor was disconnected. The MAP is located behind the TBI. Be sure the vacuum hose is in good shape. Mine has to be replaced as the glue no longer worked and it leaked. If you have a vacuum pump, make sure the MAP can hold a vacuum or it needs to be replaced.

What causes Silverado to have intermittent no crank?

I’ll be honest with you, finding the cause of a Silverado intermittent no crank condition is no fun. It’s a complicate these that involves multiple switches and three computers. All the signals have to line up before the Electronic Control Module (ECM) will ground the starter relay.

Can a crank sensor cause a motor to run bad?

Security system disables the fuel – you have added fuel (starting fluid) to throttle body – it should have at least ‘started’ and attempted to run for a couple seconds until starting fluid was burnt. You should at least get a backfire – even if timing / firing order is off > That is IF – IF the *spark plugs* are firing (???). !

Why does my truck crank but won’t start?

IF the spark plugs are soaking wet with fuel – it ain’t never going to start !! As much as you’ve been cranking the engine without it starting – plus adding starting fluid – it has got to be severely flooded by now ! Security light would be on / flashing while cranking IF that is the problem.

What should I do if my crank sensor goes bad?

Activate all 8 fuel injectors to start spraying fuel into the cylinders. Maintain the fuel pump activated after its initial start. With fuel and spark now present, the engine now starts. The most important thing to know, is that if the crank sensor goes bad, your 4.8L, 5.3L, 6.0L GM vehicle vehicle will ‘Crank but Not Start’.

Why does my Chevy fuel pump keep failing?

The Chevrolet service bulletin states that the cause of the repeat failures is due to worn or damaged electrical connectors at the fuel pump assembly. When you get the Delco replacement parts it comes with a new connector on the fuel pump side.

When did the Chevy fuel pump come out?

It started on Chevrolet truck models from 1996 to 2003 model years, but has expanded to other models as the connector and pump assemblies are not aging well. In fact, I have a financially strapped friend with an 04 Silverado that now caries a heavy rubber mallet in the truck.

Why does my 1997 Chevy Suburban not start?

1997 1500 pickup at low throttle engine is missing to the point were I had it full throttle and no power and engine died. Still won’t start … read more Vocational, Technical or Tra… i have a 1998 chevy suburban. It was running fine when parked, but 3 days later will not start. It cranks fine, but sounds as though it wants … read more

Can a 1997 Chevy c1500 5.7L start?

1997 Chevy C1500, 2WD, 5.7L won’t start – cranks fine. No codes – good fuel pressure ( 60+ psi – new pump), good spark, 1997 Chevy C1500, 2WD, 5.7L wont start – cranks fine. No… It will not start. I changed the fuel filter and fuel pump It will not start.

Where does the fuse come from on a 1992 Chevy truck?

The purple wire at the starter solenoid, should be hot with the key in the crank position. My info shows more than one circuit at the starter S terminal, feed for the crank fuse, comes from the S terminal by way of the ignition switch, in crank position.

How does ignition timing work on a Chevy 454?

Fuel takes a certain amount of time to burn. As the engine rpm increases the time the fuel remains in the engine decreases exponentially, thus ignition timing is advanced to allow more time for combustion. Mark the timing mark on the harmonic balancer with the white marker to make it more visible for the timing light.

How does the ignition work on a Chevy 350?

The engine’s ignition system is triggered by an electronic driver which signals the ignition coil when to fire. By design the resistance it takes to fire the coil via the spark plug is figured into the system.

What kind of bike won’t turnover or start?

I took a 9 mile ride yesterday on my 06 electra glide standard, everything was fine. I turned the bike off for 10 minutes, went back to start and only got a little short rapid clicking sound, but no turnover at all. That clicking shortly turned in to nothing after a few more tries.

What to do if your engine won’t turn over?

On the other hand, if you don’t see it, you will need to backtrack and figure out why you don’t have it. By “backtracking”, we mean following the wire from the starter. And then checking for that voltage on the other side of it. Which is usually at another solenoid or relay.

How can I tell if my battery cables are faulty?

You should check the cables directly on the engine as this will eliminate the engine and only test the cables and the battery. If this test also fails, then you should go directly to the battery and load test it. This will tell you if you need to replace or charge your battery. Or if there is something faulty happening with the battery cables!

What happens when the spark plug doesnt fire on a lawn mower?

When the spark plug doesn’t fire or fires intermittently, your lawn mower engine won’t start, or if it does start, it will stall.

What should I do if my battery won’t start?

You will need a basic multimeter for the job, and you have to first make sure to properly disconnect the battery, so that you can get an accurate reading. A load test might also be recommended, during which the electronic system should be started, and the battery’s output should be measured while it runs. Advance offers this service for free *.

When to replace the plug in your car?

If the plug has seen many hours of service, the electrodes may just be worn out, and replacing the plug will restore normal engine operation. If other parts of the engine are malfunctioning, however, you can often glean information about the malfunctions by examining the plug.

What was the name of the car that caught on fire?

In 2011, South Wales resident Karina Collins was driving her Mini Cooper on the M4 when it suddenly lost power. As she pulled over, it became clear that the Coop was on fire. She left all her belongings inside and escaped without harm.

How can I tell if my C10 truck is re wired?

This is actually a common problem in 70s and 80s C10s and no one ever get’s the right answer. If no one has re-wired this truck in the past then turn your key to the run position and check to see if your turn signals and back up lights are working.

How to install a wire harness on a 1965 Chevy C10?

PAINLESS Wire Harness Install! Rewiring Our 1965 Chevy C10 WITH THE suspension installed and the body back together, it’s time to give our 1965 Chevy C10 a new set of veins. The original electrical system in Project Raven has been cut and taped so many times we can’t tell where anything goes.

What should I do with my 1965 Chevy C10?

WITH THE suspension installed and the body back together, it’s time to give our 1965 Chevy C10 a new set of veins. The original electrical system in Project Raven has been cut and taped so many times we can’t tell where anything goes. New wiring and fuel injection will make the truck usable on a daily basis and as reliable as a new modern vehicle.

What kind of radio does a 1965 Chevy have?

The small display in the center contains a simulated tumbler odometer, too. For audio on our 1965 Chevy truck, we chose a CAM-CHTK-740 radio from Custom Autosound. This head unit is an AM/FM radio that features Bluetooth built in, a USB port, two auxiliary inputs and the ability to add a CD player.

Where did the Ford F350 6.0 just died?

Vocational, Technical or Tra… o5 f350 6.0 sucked water at river crossing. Got it dried out and started and ran yesterday. Started today and ran rough today then died after … read more Ford master diesel Tech.Fo… where should i start.

Why does my Chevy Silverado turn over but not fire?