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Car won't start, little backfire through throttle body

Engine died while i was driving, now when you try to start it, it just turns over and has a little back fire through the throttle body

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  • pat_k_87 Apr 22, 2009

    it's 1997 LT1 350 5.7L auto, gas is fine plugs and wires are new distributor is new coil is new and ignition module is new, no choke problems either.

  • mike_john88 Apr 28, 2009

    I have a 1988 TA 5.7 GTa an my problem is the same as above car won't start but back fires a little when turning over. I have a new distributor new coil cap an wires also plugs an ignition switch.if possible you can contact me at mike_johnson618@bellsouth.net

  • Dennis Yachimec May 11, 2010

    What year is the car and what size motor?

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Water in the gas?
lose wire in the plugs
fuel filter is dirty
auto choke is stuck
What?????????

Posted on Apr 22, 2009

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How many Ks you may want to check ignition timing and valve timing.

Posted on Oct 31, 2012

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1 Answer

2004 susuki forenza won't start after i put new head and put in time ,ran good for thirty minutes


Old post but , this answer covers all , of this type symptoms.
new head,
ran for 30 minutes
so does it crank ? ok? if not dont crank, it can start.
so crank is next. (first)
backfiring (true to the air cleaner) usually means TIMING IS way off and sure engines can start with timing way off and then stall and flood out.
nothing new there.
you did not time the engine correctly.

get the FSM on engine. read the pages.
or go to alldata.com and read that.
for others searching using google, my lil. contribution;

Jan 27, 2013 | 2004 Suzuki Forenza

1 Answer

1998 chevy venture won`t start. cranks over pops and backfires, was running great till it shut off when I was driving it. obd says no codes found


unplug the MAF sensor and see if that helps.

I assume you have spark since it is backfiring. Will it start if you use a little carb spray in the throttle body?

If it does than you have a fuel issue. Check fuel pressure. You should see more than 35 psi roughly. If there is no fuel pressure than check for power to the pump (the larger of the two grey wires at the pump). If there is power than the fuel pump would be the first thing I suspected.

Mar 06, 2012 | 1998 Chevrolet Venture Cargo

1 Answer

Got a 1998 Oldsmobile Silhouette. The engine will turn but won't start without giving it a good bit of gas but then dies shortly afterwards. What could be wrong with it? My husband used a little...


I have a feeling that I will be posting this recommendation often as most people do not know about it. Your throttle body is gunked up to kingdom come with engine grime and is sticking not allowing the proper amount of air to get into your engine.

CLEAN the throttle body. there is a metal flap inside that is getting stuck. Check here to see a clean throttle body

Here is the quick and dirty: Your gas pedal is hooked up to a wire or motor that turns a flap open and closed and various degrees of open and closed as you apply and take pressure off of the pedal. this flapper gets gunked up and sticks. it is the sticking that causes your car to choke and die :)

Go buy CRC Throttle Body Cleaner and remove the throttle body and spray that in there and wipe clean with a towel.

Search forums for vehicle specific instructions on how to remove the throttle body and clean it. Guaranteed you are not the only person with this issue.

I will try and help for your Olds.


1. Open the hood, look at then engine.
2. On the right side there will be an air intake tube that is black and hooked up to your air box and throttle body with hose clamps
3. Losen the hose clamp from the throttle body and remove the black air hose from it and gently move it out of the way.
--> If you do not want to remove the throttle body completely, skip to step #7
4. there will be 4 bolts holding the throttle body to the intake manifold.
5. Note any and all electrical connections to the throttle body.
6. Remove the electrical connections (unplug) and remove the bolts (4) and the throttle body should come off.
7. Spray CRC Throttle Body Cleaner all over and wipe clean with a cloth that can get really dirty.
8. Make it SHINE :) then reinstall
9. put 4 bolts back on, reconnect the electrical connections you remembered from step #5
10. Reconnect the black air hose and tighten the hose clamp...

Done!

Start the car and it should be good as new. (sort of)

-Brian

May 24, 2011 | 1999 Oldsmobile Silhouette

1 Answer

Driving car and just died ignition module and coil packs are good were would u look next i was thinking crank sensor


May be the timing chain. I had an 87 that did the same thing. See if it will start by squirting some starting fluid in the throttle body to make sure it's not a fuel issue.
You can check for spark by pulling a plug wire off, inserting any spark plug to the wire, and holding the base of the plug to a metal part of the engine. You should see the plug sparking when the engine is cranked.
An improper but effective way to check for compression is to disable the ignition to avoid backfire, removing the boot to the throttle body, and holding your hand over the opening of the throttle body. If the timing chain is good and you've got any compression, you will feel suction on your hand. If the chain or gears have failed you will feel suction followed by blowing out of the throttle body.

Jan 06, 2011 | 1988 Pontiac Bonneville

1 Answer

My truck dies when i go slow or brake


severe vacuum leak possibly or IAC isn't functioning. Try cleaning throttle body and IAC with carb cleaner and see if it helps. Always be very careful with carb cleaner, if you have any spark leaking around plug wires you will have a engine fire on your hands also if engine backfires same thing. always install air cleaner before trying to start engine after spraying a bunch of carb cleaner down the throttle body.

Nov 04, 2009 | Dodge Ram 1500 Cars & Trucks

2 Answers

Starts idol rough and dies says running with rpm up let off it dies


do you have a check engine light on? if not try cleaning the throttle body follow the tube from the air cleaner box to the throttle take hose off open throttle plate and clean with carb cleaner and a tooth brush and a rag car will run rough after you do this may have to hold throttle open to start

Jun 15, 2009 | 2000 Pontiac Grand Prix

1 Answer

I have a 1995 chevy cavalier 4cyl. I was driving 30 klm.I think I ran out of gas,gauge was close to empty.Car died,turns over no start,wanted to push off road BUT it would not shift out of park?Had to get...


Sounds like the fuel system lost its prime.

Remove air cleaner, pour about 1/4 cup gasoline into the throttle body/carburetor, put air cleaner back on, start car. Repeat until it runs. You may get a small backfire in the throttle body, so don't be looking at it while someone else starts it. Good idea just to stand back from engine when engine is cranked.

May 06, 2009 | 1988 Chevrolet C3500

1 Answer

Hard start when air temp is cold, backfires when warm


Try this, remove (MAF) Mas Air Flow sensor,(be sure key is OFF) so you don't set a trouble code when disconecting wire conector, with some throttle body/air intake cleaner from the outlet side of MAF, spray the sensor clean, let dry, reassemble.Remove snorkle from throttle body, and with a old tooth brush, clean throttle body& plate with cleaner, may take a couple of cans if throttle is badly 'coked' up. Hope this helps.

Feb 01, 2009 | 1999 GMC Sierra

1 Answer

Timing a pontiac 6000le 2.5 engine


first check to be sure the vavuum lines at the throttle body are in there correct places.
on the main pulley of your engine, the one on the crank shaft there will be a little notch on it. mark the notch with some chalk or a dab of white paint. then loosen the bolt that holds down the distributor until you can turn the distributor. turn the distributor a little bit, snug the bolt up and try it. once you have the car running you will need a timing lite to set the timing to the correct timing mark. which should be 8 degrees before top dead center for you car.

Oct 09, 2008 | 1988 Pontiac 6000 Wagon

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