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Question

my 1994 buick 3800 will crank but not start. ive replaced the crank sensor, coil pack, ign mod, still no voltage at the injectors

Submitted: 568 days and 18 hours ago.

Category: Car

Value: $9

Status: AWAITING CUSTOMER ACTION

Optional Information:
1994 Buick lesabre 3800

Already Tried:
crank cam, sensor, ignition modual, coil pack,

Posted by Shawn 568 days and 17 hours ago.

Info Request

grover,
Have you pulled any codes?
Have you checked all underhood fuses?

Shawn

568 days and 17 hours ago.

Reply

ive done both and when they ran the diagnostics they said it was running fine. sometimes it will start.

Posted by Shawn 568 days and 17 hours ago.

Info Request

OK. Is it you get no voltage at all at the injectors or the injectors have voltage on 1 wire but do not pulse? If there is no voltage at all with key on make sure the 10amp fuse(I believe it is #7) in the underhood relay center is not blown. Check for power going into the fuse.

568 days and 17 hours ago.

Reply

cannot check until tomorrow. but what if there is no power to the fuse?

Answer

We'll have to check main power source and wiring under the relay center. I'll go through the schematics tonight. Check the fuse and let me know what you find. Be sure there isn't power at one wire on the injectors with key on.

Shawn

Accepts:
Expert:	Shawn
Pos. Feedback:	100.0 %
Answered:	5/2/2008

ASE Certified Technician

PA Certified Inspection emissions, ASE Brakes Suspension, Lead diagnostic Tech.20 years exp

568 days and 16 hours ago.

Reply

Reply to LSx Tech Shawn's Post: thx ill get back with u tomorrow and i will accept your answer, but its my first time using this and i want to be able to get back in touch with u.

Posted by Shawn 568 days and 16 hours ago.

Info Request

Don't accept until we get you running again or at least know what needs replaced or repaired.
I'd rather have you fixed before paying.

Shawn

568 days and 16 hours ago.

Reply

cool

Posted by Shawn 568 days and 16 hours ago.

Info Request

I'll keep checking email awaiting a notice that you replied then get with you ASAP.

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Question

my 1994 buick 3800 will crank but not start. ive replaced the crank sensor, coil pack, ign mod, still no voltage at the injectors

Optional Information

Optional Information: 1994 Buick lesabre 3800Already Tried: crank cam, sensor, ignition modual, coil pack,

Info Request

grover,Have you pulled any codes? Have you checked all underhood fuses? Shawn

Reply

ive done both and when they ran the diagnostics they said it was running fine. sometimes it will start.

Info Request

OK. Is it you get no voltage at all at the injectors or the injectors have voltage on 1 wire but do not pulse? If there is no voltage at all with key on make sure the 10amp fuse(I believe it is #7) in the underhood relay center is not blown. Check for power going into the fuse.

Reply

cannot check until tomorrow. but what if there is no power to the fuse?

Answer

We'll have to check main power source and wiring under the relay center. I'll go through the schematics tonight. Check the fuse and let me know what you find. Be sure there isn't power at one wire on the injectors with key on. Shawn

Reply

Reply to LSx Tech Shawn's Post: thx ill get back with u tomorrow and i will accept your answer, but its my first time using this and i want to be able to get back in touch with u.

Info Request

Don't accept until we get you running again or at least know what needs replaced or repaired.I'd rather have you fixed before paying. Shawn

Reply

cool

Info Request

I'll keep checking email awaiting a notice that you replied then get with you ASAP.

Related Car Questions

Optional Information:
1994 Buick lesabre 3800

Already Tried:
crank cam, sensor, ignition modual, coil pack,

grover,
Have you pulled any codes?
Have you checked all underhood fuses?

Shawn

We'll have to check main power source and wiring under the relay center. I'll go through the schematics tonight. Check the fuse and let me know what you find. Be sure there isn't power at one wire on the injectors with key on.

Shawn

Don't accept until we get you running again or at least know what needs replaced or repaired.
I'd rather have you fixed before paying.

Shawn