Question about 1987 Pontiac Bonneville

1 Answer

How to set timing on a

Engine will turn over but backfires through intake. Cam and Crank sensors replaced.

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  • Pontiac Master
  • 1,250 Answers

No timing adjust can be made
When you install the crank sensor did you adjust so it won't touch anything. there is a tool to adjust it like

how to set timing on a - cbaca5f5-eb22-4e04-bc05-c15da844c09a.png

hope it helps

Posted on Apr 04, 2014

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 99 Answers

SOURCE: jumped timing?

It really does sound like the timing went out of whack. The timing belt should be replaced periodically, according to your owner's manual. It may have worn and stretched just enough to slip over a cog a bit. Remove the timing belt covers and check the alignment of your cam and crank. There should be subtle marks on the cogs and the rear cover or casting. The compression will be good during a cranking test, but will not be ok during a running compression check. Replace the timing belt and check the pulleys. If your timing belt did not slip, the timing chain tensioner or guide shoes may be worn and will require replacement.

Posted on Aug 08, 2008

  • 1 Answer

SOURCE: Pontiac Shutdown

I can solve your problem. I have the same Pontiac, year, make everything....The same thing happend to me...Turned out to be the coil packs. The car died while I was driving and then ran like ****.

Posted on Jun 28, 2009

rtpflh
  • 546 Answers

SOURCE: cam & crank sensor code intermitten spark 2.4

check timing marks on cam sprocket,could be one tooth 'retarded'.

Posted on Oct 09, 2009

kirkx
  • 2019 Answers

SOURCE: my 1995 pontiac transport. i

All circuits are linear.
First there is a fuse, then the ignition switch, then the ECU, then the ECU puts out the signal to the coil packs based on input from the sensors.
But you need to check if power ever even gets to the Electronic Control Unit.
There is also a knock sensor.

All car went to electronic ignition, not only to avoid the need to set and replace points all the time, but also because they needed to have electronic control over timing advance and ******, based on things like engine knock, fuel quality, O2 sensor feedback, temperature, etc.

But don't just replace things.
Things like an ECU can be taken in and tested at a place like Autozone.

Posted on Aug 24, 2010

skychief2001
  • 21873 Answers

SOURCE: no voltage on crank sensor grand am 2001 2.4

The crank and cam sensors produce ac voltage that is sent to the computer. There are magnets or components on the crank and cam that the sensors "read".
The problem could be the harness between the sensors and the computer, or a mechanical problem like a timing chain or gear.

Posted on Sep 21, 2012

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What is the correct timing chain installation on 2000 grand cherokee 4.0 engine


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Hi Ricky, I'm glad to help. Below is the possible causes for the P0344 code that you have.



Symptom:
P0344-CAMSHAFT POSITION SENSOR INTERMITTENT
When Monitored and Set Condition:
P0344-CAMSHAFT POSITION SENSOR INTERMITTENT

When Monitored: Engine running or Cranking.
Set Condition: When the failure counter reaches 20. One Trip Fault.
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GOOD TRIP EQUAL TO ZERO
WIRING HARNESS INSPECTION
(K7) 5 VOLT SUPPLY CIRCUIT OPEN OR SHORTED TO GROUND
TONE WHEEL/PULSE RING INSPECTION
CHECKING CKP SIGNAL WITH THE DRBIII
t LAB
CAMSHAFT POSITION SENSOR
(K44) CMP SIGNAL CIRCUIT OPEN
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(K44) CMP SIGNAL CIRCUIT SHORTED TO B+
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PCM

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