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Car wont fire up, just an occasional pop!

If I have adjusted the valves to tight will that prevent the engine from starting?

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YES! if it pops back through the intake, you have either 1 or more intake valves too tight. If its not throught the intake, then check the exhaust valves. One trick to check the exhaust valves is to place a dollar bill over your exhaust, it should ALWAYS flap back away from the exhaust pipe. If at anytime the bill sucks up into the exhaust, then you do have an exhaust valve too tight. Its kinda like this:

Posted on Dec 04, 2013


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Posted on Jan 02, 2017



  • 17 Answers

SOURCE: engine would die occasionally. would not start

check battery cable connections first and foremost...

Posted on Dec 15, 2009

Randy Ohler

  • 14585 Answers

SOURCE: I just had my wifes

Check the fuel pressure and fuel regulator. You can have fuel, but not enough pressure to push threw the injectors.

Posted on Sep 05, 2011

raj somaiya

  • 5370 Answers

SOURCE: replace e. g. r. valve car started drove home turn off wont start

Car not starting or turning over indicates towards multiple possibilities. It can be issue with battery or weak battery. But if battery checks out ok, then it can be starter issue or faulty alternator or problem with low fuel pressure or no spark at spark plugs due to dirty spark plugs or faulty ignition coil or injectors getting cracked or dirty and needs to be cleaned.

To confirm the problem, the basic troubleshooting is required.

Click this link below and follow the troubleshooting:------


This will help.


Posted on Feb 18, 2012

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I have a 1995 Subaru legacy. While overtaking another vehicle, there was a loud noise, possibly a backfire and the engine died. I coasted to the side and had the car towed to a garage. I suspected a...

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Are you sure the cams are aligned correctly?

If the belt was broken It may be wise to do a compression test. This should tell you if a valve has bent.

I’m happy to assist further over the phone at

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Hi : Mr bnwelter how are you
im very glad to help you

When an engine turns over but will not start you must start at
the beginning. You have battery and now you need fuel, spark, and compression. Many things can effect the lack of these things but there is many different things that could go wrong in these systems. Check each one individually.
FUEL, SPARK , COMPRESSION only three things needed for an internal combustion engine.
You may also want to make sure your distributer isn't 180 out.
Was there a new timing chain installed? If so, there is a chance that the timing marks aren't lined up correctly, or they were set with the #6 cylinder at TDC and not the #1 cylinder.
One senario, If your running a Holley carb, Chances are your cam is real high in compression (modified cam) and holleys come stock with the standard 6.5 Power valve. you change that out to a 3.5 and the back firing will cease. Had this same problem with a new 454, sounds so familiar.. Your story is just like my quest, turns out to be a 8.00 part..
How are your valves adjusted too tight and it will back fire and not start, adjust to 0 lash then half turn

accepted greetings
we wish you success in solving that problem
Mr bnwelter

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My rockerarms are loose on my 2.2liter engine. how can i adjust them?

Adjust the valves when the lifter is on the base circle of a camshaft lobe:
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  4. Crank the engine one complete revolution until the timing tab and the O mark are again in alignment. Now the engine is in the No. 4 firing position. Adjust the following valves: Exhaust - 2,4 Intake - 3,4

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Use a feeler gauge.
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You want a slight drag when you pull the feeler gauge through. This technique takes a certain amount of 'Feel'.

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