Did a full rebuild on my 94 using the fsm, new plugs, wires, cap and rotor. It seems like it wants to light off and run but it's struggling to start and stay running.
Hard to get started
- Thread starter Imatsu
- Start date
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There are many thread many threads on this subject you should search.
I'll give you two starting points...
Is the CEL illuminated with the key ON, before starting. If not the vehicle will not start, means the ECM is not receiving power.
Have you messed with the two screws on the connection to the AFM?
I'll give you two starting points...
Is the CEL illuminated with the key ON, before starting. If not the vehicle will not start, means the ECM is not receiving power.
Have you messed with the two screws on the connection to the AFM?
- Thread starter
- #5
Im pretty sure I've checked that, ill check it again tomorrow after work, unfortunately got called back in and won't be home until late
With all the possible things that could cause your symptoms and all the systems you touched you're going to get a lot of random suggestions from people who know a lot, but very little about your case.
Any details will be helpful to narrow it down. Video link would be great as well
Any details will be helpful to narrow it down. Video link would be great as well
- Thread starter
- #7
I tried posting a video but I wouldn't let me, any suggestions I should try to post the video?
If that’s truly all you did, you had to have introduced the fault. Going off exactly what you said, you either wired your plugs wrong or your timing is off.
Like @60 toy ota said, we need more context. So forgive the following stupid question(s):
What do you mean by “full rebuild”? Just electrical, or full on engine out bottom end, head gasket, and timing chain?
- Thread starter
- #9
Tore it down to the bare block with new bearings and seals/ o-rings, etc. Everything went together just like the fsm, timing marks lined up as they should. Just struggles to start and stay running. Plugs and wires are where they need to be thats the first thing I checked.
- Thread starter
- #11
Plug gas is .031. I still gotta check compression, my buddy borrowed my tester and I'm waiting to get it back
Start with bare basics.
Is distributor installed, timed to the correct stroke? Not 180⁰ wrong?
Did you align the match marks on the distributor gear and body per the FSM when you installed the distributor? Get this right and timing should be close enough to get it fired up, then adjust the timing with a light.
Verify that #1 piston is actually at TDC when the crank pulley/harmonic balancer says it is. Did you re-use your original harmonic balancer? Harmonic balances can separate and the outer ring can shift giving you a false 0⁰ mark
Double check all you wiring is connected properly. If the distributor connector isn't making a good electrical connection, it won't fire. ( I had a bad connection here when I was in the same boat, fixed this and it died up beautifully)
Are all your injector harness connectors good?
Is your engine wiring harness in good condition? No melted or heat damaged wires where the harness passes the EGR?
I don't see compression being an issue unless you really screwed up something big.
If it's not something simple, then start looking for bigger issues, but check all the basics first
Is distributor installed, timed to the correct stroke? Not 180⁰ wrong?
Did you align the match marks on the distributor gear and body per the FSM when you installed the distributor? Get this right and timing should be close enough to get it fired up, then adjust the timing with a light.
Verify that #1 piston is actually at TDC when the crank pulley/harmonic balancer says it is. Did you re-use your original harmonic balancer? Harmonic balances can separate and the outer ring can shift giving you a false 0⁰ mark
Double check all you wiring is connected properly. If the distributor connector isn't making a good electrical connection, it won't fire. ( I had a bad connection here when I was in the same boat, fixed this and it died up beautifully)
Are all your injector harness connectors good?
Is your engine wiring harness in good condition? No melted or heat damaged wires where the harness passes the EGR?
I don't see compression being an issue unless you really screwed up something big.
If it's not something simple, then start looking for bigger issues, but check all the basics first
- Thread starter
- #13
I double checked all the wiring and connectors and they are all good, and distributor was lined up as at should but ill check it again for giggles. Its tries to run it's just studders for a couple seconds trying to run then falls on its face and cuts out. I have a short video of what it's doing I just dont know how to post it
You need to upload video to your choice of YouTube , vimeo, flickr etc etc then copy and paste a link.
You can't load video directly to mud
- Thread starter
- #15
Gotcha. Ill try that after I get off work today.
All grounds hooked up?
- Thread starter
- #17
Does it stay running with a shot of starting fluid?
- Thread starter
- #19
It does not. Doesn't matter if it starts on fuel or starting fluid it does the same. Tries to run for a few seconds then it dies
Will it do this back-to-back? Can you consistently get it to start for a few seconds? what happens when you give it throttle while it's running?