97 GMC Jimmy/won't start

HUSTEAD

MEMBER
1997 GMC JIMMY
6 CYL
4WD
AUTOMATIC
140,000 MILES

Been blowing antifreeze up on the motor changed heater core hoses dried the top motor off checked all vacume hoses and will not start don't make alot of money and I try to do all my own repairs please help me a easy solution! Someone at autozone told me it could be a seal I hope its not the seal he's talking about? The Jimmy ran real good before this all happened no problems with anything. Thank You Please Help! Also did clean wires

Tuesday, March 29th, 2011 AT 5:57 PM

4 Replies

JDL

MECHANIC
16,098 POSTS

Is it still leaking antifreeze? Have to fix that first. Cooling system is full? If it cranks good but won't start, have a helper it while you check for spark at the spark plugs. If you have spark everywhere, use a gage and check fuel pressure.

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Tuesday, March 29th, 2011 AT 6:02 PM

HUSTEAD

MEMBER
3 POSTS

Sparkplugs are new and not sure if antifreeze is still leaking because it won't start all is new from last summer plugs, wires, cap rotor

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Tuesday, March 29th, 2011 AT 6:20 PM

HUSTEAD

MEMBER
3 POSTS

Could it be the fuel filter?

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Tuesday, March 29th, 2011 AT 6:36 PM

JDL

MECHANIC
16,098 POSTS

You have to visually check for spark at the plugs. Take spark plug wire loose, use known good spark plug or spark tester in the boot, ground metal part of tester to metal part of engine. Watch for spark, engine cranking.

You can check coolant level, right? Some of the national brand autostores used to loan out a fuel pressure gage.

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Tuesday, March 29th, 2011 AT 7:23 PM