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Cranks but will not start. and backfires through the intake

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2004 astro van.started fine in the morning put rear brakes on now won't start.fuel pump works.when cranking over backfires through intake.didn't touch any wires when putting on rear br


Backfiring from intake usually indicates a timing problem. The brake job has not effect on the engine, unless you accidentally disconnected some wires in the engine compartment, but highly unlikely. More likely the timing belt/chain may have jumped a few teeth. If you have an access hole to see the timing belt and marks have a look. If you need more specific info most libraries have subscriptions to online automotive service manuals for almost any year, make and model of car, motorcycle, or whatever. If you have a library card, some will give you the u/n and p/w so you can access them from your home computer, if not then you will have to go to your local branch to get access, but it is free!

Jan 25, 2015 | 2004 Chevrolet Astro

1 Answer

1996 chevy cavalier 2.2 backfire no start


Check for plugged converter by removing the 02 sensor to see if it starts.

Nov 18, 2013 | Cars & Trucks

1 Answer

Audi a4 1.8 can't start after top was overhauled is making a weird sound like backfiring the engine dont even move please help camshaft marks was done as well as pulleys and the pistons was also put on...


Back fire is only caused by intake valve being open when a spark plug fires on a cold engine.
Recheck timing marks of cams where the drive sprocket notch of each cam shaft aligns with the cam cap mark at the rear of the head.

It has been known for the crank sprocket to come loose on the crank nose and timing will be off if this is so.
.

Oct 23, 2013 | 2004 Audi A4

1 Answer

No start and backfire under hood


have you tried the throttle position sensor?

May 22, 2013 | Chevrolet Cars & Trucks

1 Answer

2005 wrx 2.0 getting fuel to the rail but not to injectors or engine. cranking for about 30 secouns causes backfire in the intake but engine wont start. what could be the problem?


Well technically you have fuel in the engine if you are getting a backfire in the intake. I would say the fuel is getting thru the injectors.
But maybe not at the right time.
Has anything happened to the timing belt or cams ?

Apr 11, 2013 | 2008 Subaru Impreza Wrx

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89 K5 Blazer 350 TBI cranks but won't start... the rad hose blew, i fixed it then the next day it bogged and backfired, ran fine cold, but when warmed up it would lose power and stall when trying


Have you checked Google I found this hopefully it's not your timing or it may be flooded but doubtful have you tried spraying starting fluid into the intake while cranking it

Jun 01, 2012 | Cars & Trucks

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