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99 Chevy Metro won't rev up; Engine revving/power issue
Topic Started: Sep 29 2017, 01:12 PM (1,178 Views)
ptcapboy


Session801
Sep 29 2017, 04:34 PM
ptcapboy
Sep 29 2017, 03:57 PM
on my 96 1.3 I used the wrong mark on my crankshaft gear and the car wouldn't even turn over-I thought the little dimple that aids in the placement of the alternator pulley was the TDC mark-the actual mark is hard to find a little indentation on one of the teeth-you may want to see if your crank gear is at TDC when your cam mark lines up-you can remove the #1 spark plug and use a pencil (make sure it's long enough!) and observe it rise as you rotate the crank with your 17mm socket-as you probably already know when the pencil quits raising it's at TDC-
I tried this pencil method when I was trying to get the the timing right, but after removing the spark plug, inserting the pencil, and rotating the gear, the pencil didn't move at all. I assumed that the hole for the spark plug is not directly over the Piston?
hmmm you know I honestly don't know-but it has to be something related to the job you did since it ran fine before-
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geogonfa
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Just my .02¢...If it ran fine before the crank seal job then checking the timing marks again would be important...
maybe this will help a bit...


Posted Image
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freegeo
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Anything you touched while doing the crank seal needs to be revisited.


While you have your volt meter handy, check your reference voltage on one of the sensors. Should be right at 5 volts with the key in the on position.
Edited by freegeo, Sep 30 2017, 09:06 AM.
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iBLKBRY
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Woodie
Sep 30 2017, 04:27 AM
That sounds like a bad ground to me.

I'd also get rid of the oil pan gasket.
I agree. Check grounds.
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geogonfa
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You posted...
" I started it up and it seemed to idle fine. So when I stepped on the pedal to rev it up, I was surprised (and very sad) to see it just kind of putter and "gargle" instead. :ermm:
It will rev up a little when I give it just a bit of gas, but there is a point when I push past on the pedal that it just starts to putter again."

This sentence right here ˄ is typical of not getting the timing marks lined up...
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freegeo
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geogonfa
Sep 30 2017, 11:26 AM
You posted...
" I started it up and it seemed to idle fine. So when I stepped on the pedal to rev it up, I was surprised (and very sad) to see it just kind of putter and "gargle" instead. :ermm:
It will rev up a little when I give it just a bit of gas, but there is a point when I push past on the pedal that it just starts to putter again."

This sentence right here ˄ is typical of not getting the timing marks lined up...
:gp

The ignition timing is not adjustable on the 99 1.3.
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Session801
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[ *  * ]
Took it apart last night to redo the timing, got it all lined up, fist Piston TDC and all.

To get to the crank seal I had to take off the air filter, water pump pulley, and the pulley on the crank shaft. And the timing belt cover of course.

Also disconnected the motor from the front passenger side mount so I could raise and lower it to gain access to various bolts.

I did have the IAT sensor disconnected off and on at various times.

I took screenshots of what my FIXD app was telling me.
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Edited by Session801, Sep 30 2017, 11:45 AM.
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freegeo
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Have you cleared the codes and those codes still come back?

The engine still run the same since you re checked the timing/
Edited by freegeo, Sep 30 2017, 11:55 AM.
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Session801
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Hmm I haven't cleared them. I'll do that and see what comes up.
Yes, it's still running the same.
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MR1 Kingsbury
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Exp. builder/rebuilder

specifically how did you line it up... I still believe your cam timing is off... 2 things to try. compression test. numbers will be low if belt not aligned correctly... 150-170 is low.
timing light shown on the crank PULLEY while idling with the timing jumper in place. timing will be 4 degree after or 14 before... off 1 tooth.
Do you have a distributor or are you coil over plugs?
Edited by MR1 Kingsbury, Sep 30 2017, 01:38 PM.
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freegeo
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His is coil over plugs
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ptcapboy


was there a woodruff key on the crank? did you put it back?
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Session801
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I cleared the codes, and tried driving it around the block a couple times. (With a Max speed of about 12 miles per hour)
Now the only one coming up is the "HO2S Circuit Insufficient Activity".

Seems like I can get it to rev up a little higher than before, could just be in my head though. If it is, I'm not sure why.

Went to the junkyard and, of course, the throttle position sensors from all 3 of the Metros they had were gone.

Guess I'm going to go buy a timing light. my companion is convinced it's still a timing issue.
By now, I'd bet I could beat the record for fastest person to get the timing cover off.
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Session801
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ptcapboy
Sep 30 2017, 04:14 PM
was there a woodruff key on the crank? did you put it back?
No I don't believe there was one. If I remember right, the key is built in. I know it only went on one way.
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Session801
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I posted a video of how it's acting on the YouTube's. Not sure if it will help the diagnosis or not.

https://youtu.be/HSWU6Ozj-cU
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