93 buick park avenue 3.8 series one base model
08-30-2018, 10:16 AM
#1
Junior Member
Posts like a Ricer Type-R
Thread Starter
Join Date: Aug 2018
Posts: 22
Likes: 0
Received 0 Likes
on
0 Posts
93 buick park avenue 3.8 series one base model
cranking but not starting getting spark replaced the crank shaft position sensor harmonic balancer and throttle position sensor and manifold air temp sensor why wont it start up wanting to crank over went to jump start it and had blue smoke come out from my engine what is the issue with my car
08-30-2018, 02:59 PM
#2
Senior Member
True Car Nut
If you are not getting any spark at all, check the icm wiring as well as wiring to the crankshaft position sensor. The ICM handles spark on its own until the PCM takes over at 400rpm, so that means typically the icm isn't getting power/ground, signal, or is bad. Also I believe the main engine ground is on one of the ICM bracket bolts, so check that too. Also make sure none of the wires are broken or insulation frayed and shorting together right next to the ICM plug. It'* a hot spot, and the harness doesn't give much wire slack.
this is also assuming a complete lack of spark has been verified.
this is also assuming a complete lack of spark has been verified.
08-30-2018, 04:31 PM
#3
Senior Member
True Car Nut
I thought he said he had spark.....
First thing i would do is disconnect the MAF and see if it starts.....
Next thing I would do is have someone spray carb cleaner into intake while someone cranks the car over....
Have you scanned for codes?
cranking but not starting getting spark
Next thing I would do is have someone spray carb cleaner into intake while someone cranks the car over....
Have you scanned for codes?
The following users liked this post:
Soft Ride (08-30-2018)
08-30-2018, 09:03 PM
#7
Senior Member
True Car Nut
08-31-2018, 08:13 AM
#8
Junior Member
Posts like a Ricer Type-R
Thread Starter
Join Date: Aug 2018
Posts: 22
Likes: 0
Received 0 Likes
on
0 Posts
Last time I checked fuel pressure I only had 20psi and I don’t remember the code for rpm signal but when it stalled I unplugged the crank shaft position sensor and plugged it back inland it fired up then stalled unplugged it waited like 2 minutes plugged it back in and fired up and didn’t stall
08-31-2018, 10:27 AM
#9
Retired
Certified Car Nut
20 psi may not be enough to run the engine.
__________________
Retired Administrator
2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel
Retired Administrator
2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel
The following users liked this post:
Soft Ride (08-31-2018)