1990 c1500 starting to be a money pit

Asked by terrible2sdaddy Mar 04, 2014 at 05:59 PM about the Chevrolet C/K 1500

Question type: Maintenance & Repair

I have a 1990 c1500 w/ 5.7l tbi. It started running very rough a few weeks ago until
finally leaving me stranded on the side of the road. I brought it home on a trailer and it
would run fine just setting in the driveway. After warming it up and driving for 10 or 15
mins. it started  surging and popping and cracking, until finally dying.  After letting it set
for 30 mins. it fired right back up. I thought ignition module and coil, so I went all out
coil module cap rotor wires and plugs. Now it wont start at all. I've checked the timing
at tdc and its very close without hearing the motor run. Fuel pressure is at about 12 psi
when cranking on the engine. Ive replaced the coolant temp sensor and fuel filter to no
avail. I'm now at a complete loss. Any one with similar problems and solutions would be
greatly appreciated

3 Answers
31,215

yetilikesbeer answered 10 years ago

How did the pick-up coil look in the dist. If it's the original or older it may be the issue. Do the injectors spray fuel while you turn it over? If the ECM doesn't see ~400RPM or more from the pick-up via the ICM it won't fire the injectors. If your spraying I would re-check the timing. Your TDC compression or Exhaust/Intake. I usually pull the valve cover and watch the intake valve close then bring it up to TDC

Mark helpful

Orlando answered 10 years ago

With this experience I will say it will be the pick up coil . Make sure to mark the position of the rotor and mark the position of the dist I would just buy the complete assembly. Place motor at tdc and adjust dist . Make sure to unplug the retard wire before adjusting timing. This will allow for you to adjust to 0 and will adjust self after wire is plugged giving a perfect sound and excel.

Mark helpful
61,165

Andrew answered 10 years ago

make sure the injectors are spraying and spraying in a good cone spray while turning over the engine with the starter. Also make sure your wires are in the correct order. Have a parts store or someone test the ign module, parts stores get bad ones from time to time. I know my autozone can test them

Mark helpful

Your Answer:

Related Questions

C/K 1500

Looking for a Used C/K 1500 in your area?

CarGurus has 5 nationwide C/K 1500 listings and the tools to find you a great deal.

Postal Code:

Shortcuts

Search Chevrolet C/K 1500 Questions

CarGurus Experts

  • #1
    Andrew Olsen
    Reputation
    15,940
  • #2
    Rowefast
    Reputation
    9,670
  • #3
    John Saffrahn
    Reputation
    6,470
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Silverado 1500
222 Great Deals out of 5,891 listings starting at $2,975
Used GMC Sierra 1500
148 Great Deals out of 7,070 listings starting at $3,950
Used Ford F-150
327 Great Deals out of 15,257 listings starting at $3,295
Used Chevrolet C/K 10
3 listings
Used Chevrolet Silverado 2500HD
25 Great Deals out of 1,249 listings starting at $9,990
Used Chevrolet Tahoe
15 Great Deals out of 853 listings starting at $5,995
Used Chevrolet C/K 2500
1 listing
Used Toyota Tacoma
55 Great Deals out of 1,037 listings starting at $8,708
Used Dodge RAM 1500
7 Great Deals out of 67 listings starting at $4,000
Used Chevrolet Camaro
22 Great Deals out of 321 listings starting at $10,500
Used RAM 1500
545 Great Deals out of 15,575 listings starting at $5,000
Used Chevrolet S-10
2 listings starting at $12,975
Used Ford F-250 Super Duty
26 Great Deals out of 1,180 listings starting at $8,995
Used Chevrolet Corvette
17 Great Deals out of 1,032 listings starting at $14,900

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.